Flo Review 2026: App, Website, Login, Free Plan, Period and Pregnancy Tracker, Download, User Experience & FAQs

Quick Verdict

Flo is the most downloaded women's health app in the world for a reason. With 430 million downloads, 77 million monthly active users, and a medical team of over 120 doctors and health experts reviewing every piece of content, the platform has built something that genuinely matters to the people who use it. The AI-powered period predictions grow more accurate the longer you track, the pregnancy and ovulation features are genuinely useful, and the breadth of health education in the app is unlike anything you will find for free anywhere else. For millions of women, Flo is the first place they go when something feels off about their cycle, and it has earned that trust through years of consistent, medically credible content. The rating sits at 3.8 because real friction points exist alongside all of that. The free plan has become significantly more limited over time, with features that were previously standard now sitting behind a paywall. The aggressive upsell prompts inside the app frustrate long-term free users. The FTC and class-action legal history around data privacy, while addressed through settlements and strengthened privacy policies, is a documented chapter in Flo's history that users researching the app deserve to know about. And the cost of Flo Premium is higher than many comparable apps. These are real considerations for real users, and this review covers them plainly.

At a Glance: Icon Polls Ratings

Here is how Flo scored across the areas we evaluated in our 2026 research:

What Is Flo?

Flo is a women's health and wellness app developed by Flo Health, a company founded in 2015. The platform is designed to help people with periods track their menstrual cycles, ovulation windows, fertility, pregnancy, and now perimenopause, all within a single app. It is available on iOS and Android and operates under the vision of being a lifelong health companion from a person's first period through perimenopause.

The scale of Flo's reach is significant. Over 430 million people have downloaded the app, and 77 million use it every month. Seven million five-star ratings on the Google Play Store speak to widespread user satisfaction. At that level of adoption, Flo is not simply a period tracker. It has become the default digital tool that millions of women reach for when thinking about reproductive and cycle health.

Flo is headquartered in London. Its team of over 120 doctors, scientists, and health experts reviews all medical content before it is published, giving the app's health library and AI health assistant a credibility layer that consumer apps rarely achieve. A published peer-reviewed study found that 88.98 percent of surveyed Flo users reported improvements in menstrual cycle knowledge, and 84.7 percent reported improvements in pregnancy knowledge. These are not small numbers and they reflect a product doing something genuinely meaningful for the people who use it.

The app operates on a freemium model. The core tracking features are available free. A Premium subscription unlocks detailed health reports, the AI health assistant, in-depth pregnancy tracking, personalized predictions, and expanded educational content. The app also offers an Anonymous Mode, allowing users to track without linking their account to personally identifiable information, which has become more significant in the context of Flo's legal history around data privacy.

The Flo App: Download, Design, and Setup

Flo is a free download from the Apple App Store and Google Play. The initial setup asks several questions, including your age or birth year, when your last period started, how long your cycle usually is, and what your primary goal is, whether that is tracking your cycle, avoiding pregnancy, trying to conceive, or tracking a pregnancy. These questions allow Flo to calibrate its initial predictions before you have a tracking history.

The onboarding process asks more questions than most comparable apps. Some users find the depth helpful because it sets more accurate predictions from day one. Others find it lengthy before they can start using the app. If you skip questions, you can always return and fill them in later. Predictions improve the more consistently you log.

The app's design is clean and visual. A circular calendar view on the home screen color-codes the days of your predicted cycle: menstruation days in pink, fertile window in a lighter shade, ovulation day marked distinctly, and the rest of the cycle in neutral colors. Tapping any day brings up logging options for symptoms, mood, physical sensations, discharge, sleep, water intake, exercise, and more. The breadth of trackable data points is one of Flo's strengths for users who want detailed cycle insight.

The app supports Wear OS complications and tiles, allowing cycle insights to be surfaced on a compatible smartwatch. Wearable integration goes beyond display: temperature data from smartwatches and rings can be synced into Flo, which improves the accuracy of fertility predictions. For users with a Fitbit, Apple Watch, Garmin, or Oura Ring that tracks basal body temperature or sleep, this integration adds a layer of data to the cycle predictions that manual logging alone cannot provide.

Anonymous Mode deserves specific mention in 2026. Available on both free and paid plans, it allows you to use Flo without connecting your health data to your name, email address, or technical identifiers. Given that period and pregnancy data is among the most sensitive personal health information someone can share digitally, Anonymous Mode addresses a very real concern for many users. The mode is easy to set up during initial account creation.

The Flo Website

Flo maintains a comprehensive website at flo.health that serves multiple purposes beyond pointing people to the app. The Health Library on the website is one of the most extensive free resources on women's reproductive health available online. Articles cover menstrual cycle education, pregnancy stages, fertility, birth control, perimenopause, sexual health, LGBTQ+ reproductive health, and mental wellness. All content is reviewed by Flo's medical team and linked to peer-reviewed sources.

For anyone who wants to read about cycle health before downloading the app, or for people in communities where smartphones with good connectivity are not always available, the website's health library provides genuine educational value. The Pass It On Project, referenced on the site, extends free Flo Premium access to over a billion women in underserved communities worldwide, specifically addressing the access gap that exists when health education is locked behind a subscription.

The website also provides access to account management, subscription settings, and support contact for existing Flo users. You cannot track your period or log daily symptoms through the website in the way you can through the app, so the website is more of a companion resource and health education platform than a functional replacement for the mobile app.

Login and Account Access

Creating a Flo account requires an email address and a chosen password, or Google sign-in if you prefer not to create separate credentials. The login process itself is standard and rarely generates complaints. Two-step authentication is available for users who want additional account security.

Anonymous Mode login is slightly different from standard login. When using Anonymous Mode, your account is not connected to your email address in the usual way. If you forget your login credentials in Anonymous Mode, recovery is not possible the way it would be with a standard account, because Flo deliberately does not maintain the identifying connection. This is the privacy tradeoff of Anonymous Mode and it is worth understanding before choosing it.

For users who need to access Flo across multiple devices, the same credentials sign you in on both iOS and Android, and your logged data syncs between devices. Switching from an Android to an iPhone or vice versa does not require starting your tracking history over, as long as you use the same account credentials.

Account support is available at [email protected]. The support team is referenced frequently in both positive and critical reviews, with responses typically acknowledging specific concerns and inviting users to email for resolution. Response times are not always immediate, which is typical of email-based support at consumer app scale.

Period Tracking: Flo's Core Feature

The period tracking experience in Flo is the foundation everything else is built on, and it is where the app has the strongest claim to being the best in its category. When you log your period start and end dates consistently, Flo's AI algorithm builds an increasingly accurate model of your individual cycle, not a generic average. It learns that your cycle runs 26 days rather than 28, that your luteal phase is longer than average, or that your period consistently lasts five days. Those personalized predictions become more reliable the longer you use the app.

The symptom logging system is one of the most comprehensive available. You can log flow intensity, cramping, mood, skin changes, energy levels, breast tenderness, discharge characteristics, sleep quality, headache, libido, and dozens of other symptoms. Logging these consistently over several cycles allows Flo to identify patterns that you might not notice yourself, such as a specific symptom that reliably appears three days before your period or a mood pattern that tracks with your hormonal cycle.

The PCOS and endometriosis pattern detection feature has been specifically highlighted in user reviews and in the App Store. One extensively discussed review describes a user whose consistent symptom logging over two years led Flo to flag that their symptoms matched those associated with PCOS, prompting them to speak to their doctor. The blood work confirmed PCOS. This is an example of the app doing exactly what it should do: surfacing a pattern for medical consultation without diagnosing. It is not the app's job to diagnose, and Flo is clear that it is not a diagnostic tool. But flagging a symptom pattern for medical attention is exactly the right use of that kind of longitudinal data.

Ovulation and Fertility Tracking

Flo's ovulation tracking goes beyond the standard calculation of ovulation occurring 14 days before the next period. The app incorporates temperature data from wearables, physical symptoms you log, and your historical cycle data to refine the ovulation prediction window. For women with irregular cycles, this is meaningfully more useful than a simple calendar calculation.

The fertile window visualization shows the days most likely to result in conception, with the ovulation day highlighted distinctly. Daily conception tips from Flo's medical experts provide context-specific guidance throughout the cycle, including information about reading cervical mucus changes and basal body temperature patterns. For people actively trying to conceive, this level of detail gives the app genuine utility beyond just knowing approximately when ovulation might occur.

It is important to state clearly: Flo's predictions are not a reliable substitute for medical fertility treatment or clinical ovulation confirmation. The app's own materials are explicit about this. For users tracking for general cycle awareness or as one source of information in a TTC journey, the predictions are useful. For users relying on Flo predictions as a primary contraceptive method, this is not an appropriate use and no reputable review should suggest otherwise.

Pregnancy Tracking in Flo

When you switch Flo to pregnancy mode or select pregnancy as your goal from the start, the app transforms into a week-by-week pregnancy companion. Each week brings updated content about fetal development, body changes to expect, common symptoms, and what to do on a practical level. The visual representation of fetal size at each developmental stage is one of the features users mention most often in positive reviews.

The app provides a due date calculator, weekly checklists of things to do and consider, and a partner sharing feature that allows a co-parent or partner to link their Flo account and receive updates alongside the person who is pregnant. This is thoughtfully designed: it lets partners see relevant information about what the pregnant person is experiencing each week without requiring the pregnant person to explain everything themselves.

Flo Premium significantly deepens the pregnancy tracking experience. Detailed developmental content, video courses, and the AI health assistant for pregnancy-specific questions are all behind the Premium paywall. One of the consistent complaints from App Store reviews is from users who tracked previous pregnancies on Flo when more features were available for free, then returned for a subsequent pregnancy to find that the rich developmental content is now a Premium feature. This is a real and documented pattern: the free pregnancy tracking has become more limited, and the paywall prompts within the pregnancy mode are described in multiple reviews as intrusive.

Flo Free vs. Premium: What You Actually Get

The free plan in 2026 covers the essential tracking functions: period and cycle tracking with AI predictions, basic symptom logging, cycle history, Secret Chats anonymous community access, and the Health Library articles on the website. It includes Anonymous Mode. This is a genuine and useful foundation that many casual users will find sufficient.

What has changed is that features which were previously part of the free experience, including detailed pregnancy development content, the AI Health Assistant chatbot, detailed symptom pattern analysis, and personalized health reports, have moved to Premium. App Store and Google Play reviews from users who have been with Flo for several years consistently describe this as the main source of dissatisfaction. The platform they originally valued has progressively narrowed, and the paywall prompts that appear inside the app during normal use are described as disruptive.

Flo Premium pricing:

Pricing verified May 2026. Annual plan is the most cost-effective for regular users. FSA/HSA eligibility applies in the United States. Prices may vary by region and app store. Some promotional offers available at time of subscription.

Data Privacy: The History and Where Things Stand in 2026

Any honest review of Flo in 2026 has to address the privacy history directly, because it is a documented and material part of the company's story.

In February 2019, a Wall Street Journal investigation revealed that Flo had been sending sensitive health data, including whether users were trying to get pregnant or had menstruation details entered, to third-party analytics companies including Facebook's analytics division and Google's analytics division. This occurred through software development kits embedded in the app. The data was sent in the form of named events such as R_PREGNANCY_WEEK_CHOSEN that made the nature of the health data clear, despite Flo's privacy policy stating it would not share such information with third parties.

The US Federal Trade Commission investigated and brought an action. In January 2021, Flo settled the FTC matter. The settlement required Flo to notify affected users, instruct third parties to delete the improperly received data, obtain user consent before sharing health information going forward, and submit to independent privacy audits. Flo completed an independent privacy audit in March 2022. The settlement was not an admission of wrongdoing under its terms, though the FTC's complaint documented the specific behaviors in detail.

A class-action lawsuit arising from the same conduct was later settled in September 2025. In that case, co-defendant Meta (Facebook) was found liable by a jury for violating the California Invasion of Privacy Act. Google and Flo settled rather than proceeding to trial. The total of $56 million was reported as the combined settlement figure, though individual amounts for each party were not separated in coverage.

Since 2021, Flo has taken documented steps to strengthen privacy practices. The company achieved dual ISO certifications in privacy (ISO 27701) and security (ISO 27001), which it describes as the only women's health app to hold both. Anonymous Mode was introduced to let users track without linking health data to personal identifiers. The stated current policy is that Flo does not sell user data and does not share health information with third parties for marketing purposes, with subscription fees as the only revenue source. These changes are documented.

For users evaluating Flo in 2026, the honest summary is this: the conduct that led to the FTC settlement occurred between 2016 and 2019, was addressed through a regulatory settlement, and the company has implemented structural privacy improvements since then. The Anonymous Mode provides a practical option for users who want to use the app without connecting their health data to personal identifiers. Users who have strong concerns about reproductive health data security given the changed legal and political landscape in many countries may prefer Anonymous Mode, or may prefer an alternative app with fully local storage.

Secret Chats and the Flo Community

One of Flo's most distinctive features is Secret Chats, an anonymous discussion forum built into the app. Users can ask questions, share experiences, and participate in discussions about cycle health, pregnancy, fertility, sexual health, and related topics without revealing their identity. The forum is moderated for safety and respectful engagement.

For the many users who do not feel comfortable asking their doctor about certain topics, or who find value in connecting with others going through similar experiences, Secret Chats fills a real gap. A reviewer on Healthline specifically noted that the anonymous forum was really unique because there are not many organic safe spaces for menstruating people to ask questions and share experiences. This sentiment appears across multiple independent assessments of the app: the community aspect is valued by those who use it.

Secret Chats is available on the free plan, which means it is accessible without a subscription. For users evaluating whether the free plan has enough value to justify the tracking investment without upgrading, Secret Chats is one of the elements that genuinely adds something the free plan provides that competitors do not.

User Experience: What Consistent Users Actually Report

The user experience of Flo divides cleanly between people who discovered the app before the paywall expanded and people who are using it for the first time in 2026. Both groups tend to praise the core tracking and content quality. The divergence is about the paywall.

Long-term users, particularly those who tracked pregnancies using Flo several years ago, consistently describe a product that was more generous and is now more monetized. Google Play reviews from this segment specifically mention returning for a second or third pregnancy and finding that developmental content shown week by week, which was freely available for previous pregnancies, now requires Premium. One reviewer put it plainly: the only thing it shows now is how far along you are. Literally everything else is behind the paywall. Flo's official response to these reviews acknowledges the change and explains that Premium subscriptions fund continued app development.

New users starting fresh in 2026, who have no comparison to what was previously free, tend to have a more neutral to positive experience on the free plan. The tracking functionality, symptom logging, and community access are functional and useful. The upsell prompts during normal app use are noted as frequent, but for users who are simply logging their cycle and are not trying to access Premium-specific features, they can be dismissed without interfering significantly with the core experience.

The medical content quality is consistently and specifically praised across all user segments. Product Hunt reviewers call it more than a period tracker with information usually provided by health professionals. App Store reviews cite the educational articles as setting Flo apart. And peer-reviewed research found that consistent use of the app was associated with genuine improvements in health knowledge. This is the area where Flo's investment in its medical team most clearly shows in user outcomes.

Pros and Cons

What Flo Gets Right

The most accurate AI period predictions available in a consumer app, improving over time as logging history grows

Medical content reviewed by over 120 doctors and health experts, making the Health Library genuinely credible rather than wellness-adjacent

88.98 percent of surveyed users reported improvements in menstrual health knowledge, and 84.7 percent reported pregnancy knowledge improvements, per published peer-reviewed research

Pregnancy tracking with week-by-week fetal development, partner sharing, and due date calculation

PCOS and endometriosis symptom pattern flagging for medical consultation, with multiple documented real-world cases where users received relevant diagnoses after Flo flagged a pattern

Anonymous Mode for users who want to track without connecting health data to personal identifiers

Secret Chats anonymous community forum provides a genuine peer support space that free plan users can access without upgrading

Wearable integration for temperature data from smartwatches and rings improves prediction accuracy

FSA/HSA eligibility in the United States makes the Premium subscription accessible with pre-tax health spending funds

The Pass It On Project extends free Premium access to women in underserved communities worldwide

Dual ISO certification in privacy and security is the strongest credentialing available to a consumer health app

Perimenopause support added more recently makes Flo genuinely useful as a lifelong health companion rather than only for reproductive years

Where Flo Creates Friction

The free plan has become significantly more limited over time, with features previously available to all users moved behind the Premium paywall, which long-term users experience as a regression

Aggressive in-app upsell prompts during normal use are described as intrusive, particularly within the pregnancy tracking mode where developmental content prompts appear frequently

The FTC settlement and class-action lawsuit history around data sharing with Facebook and Google between 2016 and 2019 represents a serious breach of trust that users deserve to know about when evaluating the app

Premium pricing at $12.99 per month is higher than several comparable apps including Clue Plus which offers similar features at lower cost

Customer support relies primarily on email, which means resolution of account or technical issues is not immediate

Ovulation predictions are educational estimates and not a reliable contraceptive method, but the app's marketing around fertility windows can be misread by some users as more clinically precise than it is

How Flo Compares to Alternatives

Flo vs Clue: Clue is the most frequently recommended alternative for users who prioritize a minimalist, non-gamified interface and a company with a stronger privacy track record. Clue's free tier is comparably functional to Flo's, and Clue Plus at approximately $4.99 to $9.99 per month is cheaper than Flo Premium. Clue does not have the same breadth of community features or partner sharing functionality. For users who prioritize design simplicity and data privacy, Clue is the more consistent recommendation.

Flo vs Ovia: Ovia (now owned by Labcorp) focuses specifically on fertility, pregnancy, and postpartum tracking, with strong content for people actively trying to conceive or tracking a pregnancy. Ovia's free tier is more generous on pregnancy content than Flo's current free plan. For users whose primary need is pregnancy tracking rather than long-term cycle management, Ovia is worth comparing directly. The corporate ownership context is relevant for data privacy evaluation given that Labcorp is a healthcare company.

Flo vs Natural Cycles: Natural Cycles is FDA-cleared as a contraceptive app and uses basal body temperature data as the primary input for fertility charting. It is the most clinically validated tool for cycle-based family planning. At $14.99 per month or $99.99 per year, it is priced comparably to Flo Premium. The critical distinction is that Natural Cycles has regulatory clearance as a birth control method, which Flo explicitly does not. For anyone using a cycle tracking app with contraception as a primary goal, Natural Cycles is the clinically appropriate option.

Frequently Asked Questions About Flo (2026)

1. What is Flo and how does it work?

Flo is a women's health and cycle tracking app developed by Flo Health. It is used to track menstrual periods, ovulation and fertile windows, pregnancy, symptoms, and more recently perimenopause. The app uses an AI algorithm that learns your individual cycle patterns the more consistently you log. You download the app, answer initial questions about your cycle history and goals, and begin logging daily: when your period starts and stops, any symptoms you experience, mood, energy, and other health data you choose to track. Over time, Flo builds personalized predictions for your next period, your fertile window, and your ovulation day based on your specific cycle rather than a population average. The more you log, the more accurate the predictions become. The app also provides a large library of medically reviewed educational articles, a virtual health assistant, an anonymous community forum, and pregnancy tracking features. It is available free with limited features, or with full access through a Flo Premium subscription.

2. Is Flo free to use?

Yes, Flo has a free plan that provides the core tracking features without any cost. The free plan includes period and cycle tracking with AI predictions, symptom logging, cycle history, access to the anonymous Secret Chats community, Anonymous Mode for privacy, and access to health articles on the website. The free plan does not include the AI Health Assistant chatbot, personalized health reports, detailed symptom pattern analysis, the full depth of pregnancy development content week by week, or video courses. These are available on Flo Premium at approximately $12.99 per month or $59.99 per year. It is worth noting that long-term users describe the free plan as having become more limited over time, with features previously available to all users now behind the Premium paywall. For basic period tracking without needing in-depth health reporting, the free plan is functional. For full use of the app's health education and analysis tools, a subscription is required.

3. How do I download Flo?

Download Flo for free from the Apple App Store on iPhone and iPad, or from Google Play on Android devices. Search for Flo Period and Pregnancy Tracker and install the app published by Flo Health, Inc. The app is free to download and no payment is required before or during installation. After installing, the app walks you through a setup questionnaire about your cycle history and health goals. You can skip questions you prefer not to answer and return to them later. Initial predictions are less accurate if you skip cycle length and last period date, so providing those two pieces of information gives you a better starting experience even if you prefer not to answer other questions.

4. How do I log in to Flo?

Log in to Flo through the app using your registered email address and password, or through Google sign-in if you set that up during account creation. If you use Anonymous Mode, your login process is slightly different as your account is not linked to your email address in the standard way. The specific anonymous login credentials must be saved carefully, because password recovery using your email is not available in Anonymous Mode by design. If you forget credentials in Anonymous Mode, account recovery is not possible without the original information, as Flo deliberately does not maintain the identifying connection. For standard accounts, the Forgot Password link on the login screen sends a reset email to your registered address. Flo is available on both iOS and Android with the same login credentials, and your cycle data syncs across devices when you are logged in to the same account.

5. How accurate is Flo's period prediction?

Flo's period predictions become more accurate the more consistently you log. Predictions for users who have fewer than three tracked periods are estimates based on the average cycle length you reported. After three or more tracked cycles, Flo's AI algorithm begins building a model of your specific cycle patterns. For users with regular cycles who log consistently, predictions are typically accurate to within one to two days. For users with irregular cycles, Flo cannot predict with high precision, but it does track irregularity patterns and flag them for discussion with a doctor. Flo's accuracy page states that the app uses cycle dates previously tracked alongside its AI algorithm to personalize predictions, and that predictions are more accurate with consistent logging and editing of past cycles where logging was inaccurate. Syncing temperature data from a wearable device further improves prediction accuracy by adding a physiological signal. Flo is not a medical diagnostic tool and its predictions, including ovulation predictions, are estimates rather than clinically confirmed events.

6. Can Flo track pregnancy?

Yes. Flo includes a dedicated pregnancy tracking mode that you activate either by selecting pregnancy as your goal from the start or by switching your mode from cycle tracking to pregnancy. In pregnancy mode, the app provides week-by-week information about fetal development, body changes to expect, common symptoms at each stage, and a due date calculator. A partner sharing feature lets a co-parent or partner link their Flo account to receive weekly updates about what you are experiencing, removing the need to relay all of this information yourself. The free plan provides basic pregnancy tracking including how far along you are. Detailed developmental content, specific milestone information, video courses, and the AI health assistant for pregnancy questions require a Premium subscription. Several App Store reviews from users returning for a second or third pregnancy describe this as frustrating, as more content was previously available for free.

7. Is the Flo app safe and private?

Flo has taken documented steps to strengthen privacy practices following a serious incident. Between 2016 and 2019, Flo sent sensitive health data, including information about users' pregnancies and menstrual cycles, to third-party analytics companies including Facebook and Google, through software development kits embedded in the app. A Wall Street Journal investigation in 2019 revealed this practice. The FTC investigated and Flo settled the matter in January 2021, agreeing to notify affected users, instruct third parties to delete the improperly received data, and implement independent privacy oversight. A class-action lawsuit related to the same conduct settled in 2025 for a combined $56 million with Flo and Google. Since 2021, Flo states it does not sell user data and does not share health information with third parties for marketing purposes. The company obtained dual ISO certifications in privacy (ISO 27701) and security (ISO 27001). Anonymous Mode is available on all plans for users who want to track without connecting health data to personal identifiers. The current privacy practices represent an improvement over what preceded the settlement, and the independent certifications provide third-party validation. Users who remain concerned about reproductive health data in the current political and legal environment may prefer to use Anonymous Mode.

8. What is Flo's Anonymous Mode?

Anonymous Mode is a privacy feature in Flo that allows you to use the app without connecting your health data to your name, email address, or technical identifiers. It is available on both the free and Premium plans. When you set up Anonymous Mode, typically during initial account creation, Flo does not link your period tracking data, pregnancy information, or other logged health data to personally identifiable information. The practical consequence of this is that your cycle data cannot be identified as belonging to you specifically, which addresses concerns about health data exposure. The tradeoff is that standard password recovery using your email address is not available in Anonymous Mode. If you forget your login credentials in Anonymous Mode, account recovery is not possible, as Flo deliberately does not maintain the identifying connection that would enable email-based recovery. For this reason, users who choose Anonymous Mode should store their account credentials securely somewhere outside the app. Anonymous Mode was introduced as part of Flo's strengthened privacy practices following the FTC settlement.

9. How much does Flo Premium cost?

Flo Premium is priced at approximately $12.99 per month on a monthly subscription or $59.99 per year on an annual subscription, making the annual plan roughly $5 per month, a saving of around 54 percent compared to monthly billing. The annual plan is the most cost-effective option for anyone planning to use the app consistently throughout the year. In the United States, Flo Premium subscriptions are eligible for FSA and HSA spending, meaning you can use pre-tax health spending account funds to pay for the subscription, which effectively reduces the after-tax cost. Flo's Pass It On Project provides free Premium access to women in qualifying underserved communities worldwide. Pricing may vary by region and the app store through which you subscribe. Prices shown here were verified in May 2026. Flo Premium includes the AI Health Assistant chatbot, personalized health reports, detailed pregnancy tracking with week-by-week developmental content, symptom pattern analysis, video courses, cycle insights, and expanded perimenopause support.

10. What is the difference between Flo and Clue?

Flo and Clue are both widely used period and cycle tracking apps, but they take different approaches to design and data. Flo has a richer feature set including the Secret Chats community forum, partner sharing for pregnancy, the AI Health Assistant, and more comprehensive pregnancy tracking content. Flo also has the larger global user base with 430 million downloads compared to Clue. Clue is preferred by users who value a simpler, less gamified interface and a company that has maintained a cleaner privacy track record. Clue Plus, the premium tier for Clue, is generally priced lower than Flo Premium at comparable feature levels. Clue does not have the same community features or partner integration that Flo provides. The choice between them comes down to what you value most: Flo offers more content breadth and social features; Clue offers a cleaner experience with less aggressive upselling. Both are medically reviewed. Users with strong data privacy concerns may prefer Clue's track record, though Flo's Anonymous Mode now provides a privacy option that Clue does not offer in the same form.

Icon polls Verdict

Flo earns a 3.8 out of 5 from Icon Polls in 2026. That score reflects a platform with genuine strengths that set it apart from alternatives and real limitations that are worth knowing about before you rely on it.

The medical content is the strongest argument for Flo. A review team of over 120 doctors and health experts, peer-reviewed backing for the AI predictions, and a published study showing measurable health knowledge improvements among users are not marketing claims. They are documented outcomes. For the millions of women who use Flo as their primary source of cycle and reproductive health education, the platform delivers something genuinely valuable that its scale allows it to produce better than smaller alternatives can.

The score does not reach 4.0 or higher because the privacy history is a documented and serious matter that preceded the current era of stronger protections, the free plan has become more restricted over time in ways that long-term users experience as a loss, and the in-app paywall prompts during normal use create friction that a product with Flo's resources and user base could reduce. The monthly Premium price is also higher than comparable apps, and the cost-value calculation deserves scrutiny before committing.

The practical recommendation from Icon Polls: if you are looking for a period tracker and want the richest educational content and the most comprehensive AI predictions available in a single free app, start with Flo's free plan and evaluate whether the limitations matter for your specific use case. Enable Anonymous Mode from the start regardless of whether you plan to subscribe. If you are tracking a pregnancy and want the detailed week-by-week content, either budget for a Premium subscription or compare Flo's free pregnancy tracking against Ovia's free tier before deciding which free plan serves your needs better. And if reproductive health data privacy is a primary concern for you personally, read the full privacy section of this review and make a decision that reflects your own comfort level.