What Are the Best Period Tracking Apps in 2025?

Many of the apps you’ll come across are basic calendars that let you log your cycle dates, period duration, and symptoms. Those are fine if you’re casually tracking your menses.

However, if you’re looking for something more accurate and reliable, you’ll need an app with a more complex algorithm that dives deeper into your cycle, symptoms and lifestyle habits. Many of the apps on our list do exactly that.

How accurate are period tracking apps?

These apps can be reasonably accurate at predicting when it’s that time of the month, but it depends on their algorithms.

Some apps are based solely on your menstrual cycle dates; these can give you rough estimates. Other apps have algorithms that analyze both your cycle dates and menstrual symptoms with sophisticated machine learning models and cross-reference this with statistical data from other women to give you more reliable results.

The more complex the model, the more data you’ll need to log (and the more consistently and accurately you’ll need to log it).

Irregular cycles can confuse these algorithms, so you might get less accurate results if you:

• Just started menstruating
• Are perimenopausal
• Have any hormonal conditions (e.g., PCOS, endometriosis, perimenopause, or stress)
• Are postpartum, especially if you’re breastfeeding
• Recently came off hormonal birth control or had a miscarriage

If you’re experiencing any of the above, these apps’ predictive features may not be as accurate for you. However, you can still use the apps as digital tools for logging and charting your symptoms, which is especially helpful if you’re keeping a record for your doctor.

How did we choose these period tracking apps?

We chose these apps based on app store ratings and recommendations from online forums. Our review focuses on each app’s interface and how easy it is to navigate the menus to access features and understand your charts.

We also looked into each app’s onboarding process (i.e., account creation, the beginning questionnaire, the app’s tutorials or lack thereof, etc.). We also included any details we could find about device integration, like using the app with a smartwatch.

While many of the apps are free to download and use, they also have paywalled perks, so we included lists comparing the features on the free and paid plans. We also examined each app’s privacy policy and practices, since you’ll be logging a lot of very personal info.

Eve is an app that takes a lighthearted, community-driven approach to period tracking. Heads up: this is our app—we built it, and now we’re reviewing it. Are we biased? Maybe. But we’ll still tell the truth about it.

Core features (free vs. paid subscriptions)

Here’s a comparison of the free and paid plans:

Free features

The free version offers:

• Cycle tracking (ovulation, menstruation, and basic estimates of your fertility window)
• Symptom logging (mood, cervical mucus, basal body temperature, etc.)
• Discussion forums
• Basic predictions for your next period and fertile days
• Educational articles on reproductive health

Premium features

Upgrade to a premium plan for $40 for three months or $70 a year. With a subscription, you get:

• Ad-free experience
• AI health assistant GlowGPT (US only)
• 20+ advanced charts and analytics covering your cycles and symptoms
• Comparative analyses (see how your experiences compare to those of other women)
• 2500+ premium articles written by physicians
• Direct messaging to other users
• Priority customer support from Glow’s team

For $100, you get lifetime access to the full features of this app, as well as Glow’s other products, including the Glow Cycle and Fertility Tracker, Baby Tracker App, and Pregnancy Tracker App (Nurture).

Ease of use and performance

The app gets better at tracking and predicting as you log more info about your symptoms, moods, and daily activities, such as:

• Flow heaviness and spotting
• Mood swings
• Bloating
• Breast tenderness
• Diet and exercise
• Cravings

This app is colorful and engaging. It offers a lot of features, which is both good and bad. It can make the layout feel cluttered if you’re new to tracking—though the onboarding process does help with orienting yourself with the different tools and resources.

Device compatibility

The app is compatible with the Oura Ring, Samsung Health, and Apple Health.

Noteworthy features

You can enjoy the app’s:

• Cycle sharing: You can share updates with your partner, excluding info about your weight, cervical mucus, pregnancy tests, and spotting (for privacy).
• Educational articles: Read Glow’s selection of medically reviewed articles on topics ranging from menstrual cycles to lifestyle habits to infant care.
• Discussion forums: Explore dozens of forums and read about others’ experiences (or share your own). These forums have rules to prevent inappropriate posts, but they’re not monitored by medical professionals, so don’t act on any advice without checking with your doctor.
• In-app shop for fertility products: The Glow Shop features PMS supplements, period care, fertility products, etc.
• Gifting section: The community page also lets users send gift cards to each other or buy items off their wishlists.

Data privacy

Glow collects personal data and usage and health information, which it stores on encrypted databases hosted on Amazon Web Services (AWS). It also uses TLS/SSL encryption (the industry standard) to protect your data when it’s moving from your phone to Glow’s systems or between Glow’s servers.

There’s an “offline data protection” mode that lets you store all your logged health info locally on your device. However, this setting will delete your data from Glow’s servers and prevent you from restoring it later, as well as from accessing daily content and community features.

If you turn on this setting, it also enables this feature on your linked accounts on other Glow tracking apps (Cycle and Fertility, Nurture, and Pregnancy).

You can also email privacy@glowing.com to request to delete your Glow account entirely.

Clue is known for its reliable data tracking and health insights, which are backed by partnerships with research institutions like Stanford, Columbia, and Oxford. However, it may feel too clinical or minimalistic if you’re looking for something that’s fun to use as well as informative.

Core features (free vs. paid subscriptions)

Check out the comparison of features:

Free features

In the free Clue Period Tracking mode, you still have access to:

• Cycle tracking (log info about your period and ovulation / fertile window)
• Symptom logging (mood, pain, energy, etc.)
• Predictions about upcoming periods and fertile days
• Custom tags (five tags to personalize your cycle tracking experience and log specific symptoms)

Premium features

It costs around $10 per month or $40 per year to access Clue Plus’s advanced features:

• Extended predictions (get forecasts up to 12 cycles ahead)
• Advanced analytics (in-depth analysis of period flow and basal body temperature charts)
• Unlimited custom tags
• Clue Connect (share cycle info with your partner)
• Educational articles on reproductive health
• Priority customer support from Clue’s team

Ease of use and performance

The interface features a simple, easy-to-navigate layout with helpful graphics.

The color-coded calendar and clear icons help you understand where you are in your current cycle without cluttering your screen. With a few taps, you’ll be able to log:

• Cramps
• Mood swings
• Flow intensity
• Basal body temperature
• Cervical fluid consistency
• Supplements
• Cravings
• Stool

Clue’s sophisticated algorithm works well for tracking and predicting periods, and it improves the more you use the app. However, if you have irregular cycles, don’t rely on the predictive feature.

Device compatibility

The app is compatible with the Apple Watch, Fitbit Ionic, and Oura Ring (which requires both an Oura membership and a Clue Plus subscription for full integration).

Noteworthy features

Many users seem to like the app’s:

• FDA clearance: The app has a US-exclusive feature called Clue Birth Control, which uses an algorithm called Dynamic Optimal Timing (DOT) to predict your risk of getting pregnant. It’s one of the few apps that have FDA clearance for use as birth control.
• Educational resources: The app’s partnership with researchers means it’s able to offer helpful, educational articles and analyses. You can read more about health, menstrual cycles, and fertility.
• Clue Connect: The app lets you share cycle info with your partner, friends, or relatives.

Data privacy

Clue is based in Berlin, so it complies with strict European data privacy laws (e.g., the GDPR). Through the app’s settings, you can opt out of data sharing for advertising and research purposes. You can also lock the app on your phone with a password or biometrics.

Flo stands out for its user-friendly interface, which displays different tips and charts based on a questionnaire you’ll take when you sign up, as well as your current cycle phase and symptoms. If you like detailed analyses but are worried other apps might be overwhelming, give this one a try.

Core features (free vs. paid subscriptions)

Curious about the difference between the free and paid versions? Here’s what you can expect:

Free features

• Predictions for your next period and ovulation
• Calendar and cycle history (view data from your past cycles)
• Symptom tracking (mood, discharge, stress, etc.)
• Secret Chats (anonymous forum)

Premium features

The free plan works just fine for basic fertility tracking, but for around $40 per year or $12 per month, you’ll have access to:

• Daily health updates on your mood, cycle, energy levels, etc.
• Flo for Partners (share info about your menstrual cycle and reproductive health with your partners, friends, or relatives)
• Educational content (articles, videos, and audio from health experts)
• Virtual health assistant
• Symptom checker (test for warning signs of PCOS or endometritis, excluding users in the UK or EU)
• Apple Health report (on iOS, generate a six-month report of your cycle and symptom history)

Ease of use and performance

The clean UI offers comprehensive tracking and quick logging for more than 80 symptoms, including:

• Cramps
• Mood swings
• Basal body temperature (BBT)
• Flow heaviness
• Physical activity
• Sex and sex drive
• Digestion and stool

It displays complex cycle trends in simple charts and summaries that are easy to understand.

Many women with irregular periods say this app’s algorithm is one of the better ones for tracking their cycles. However, it’s still advised that you manually track your symptoms instead of simply relying on the app’s predictions.

Device compatibility

You can use the app on your Apple Watch and Android smartwatches running Wear OS 3.

Noteworthy features

Here are the app’s highlights:

• AI health assistant: Flo’s AI chatbot offers medically reviewed info about managing your menstrual cycle, hormonal health and conditions, mental well-being, and more. Double check with your doctor if you have any concerns.
• Educational resources: Take charge of your reproductive health by checking out Flo’s library of articles, videos, and courses covering reproductive health, skin care, weight management, etc.
• Secret Chats: The app’s anonymous forum (called Secret Chats) covers various topics like parenthood, relationships, sex, etc. As mentioned, don’t take community posts as gospel. Let your doctor be your first line of defense.

Data privacy

The Federal Trade Commission (FTC) accused Flo of sharing sensitive user health data with third parties like Facebook and Google between 2016 and 2019. These accusations led to a settlement, followed by changes in their privacy standards and an independent audit in March 2022.

Flo launched an anonymous mode, which lets you use the app without keeping track of your name or email. The company also achieved dual ISO certifications, which are considered the “gold standard” in data protection. You can also lock your account on your phone with a password and biometrics.

This app can track and predict your period, but its charts and analyses focus more on your ovulation and fertility, which makes it a solid choice for those tracking their periods while trying to conceive.

Core features (free vs. paid subscriptions)

Here’s a side-by-side comparison of the two plans:

Free features

• Menstrual cycle tracking and predictions
• Educational articles on reproductive health
• Anonymous forums
• Detailed symptom logging (moods, diet, sleep, medications, etc.)

Premium features

While the app offers premium features through the Ovia Plus plan, it’s not a direct subscription or paid model. You can only access it through certain employers, health plans, and partnerships, like Blue Cross and Blue Shield, TriCare, and UnitedHealthcare. The subscription offers:

• More advanced fertility and pregnancy tracking
• Birth control tracking (monitor various contraception methods)
• Employer and health plan benefits (personalized health coaching from clinicians and specialized programs on topics like endometriosis and male fertility)

Ease of use and performance

The setup process feels a little invasive, especially since it asks for your country and state (if you’re in the US). There are also several socioeconomic questions about your financial status, housing, and safety. This helps the app tailor its tips and content.

While there’s limited display customization, the app offers detailed analysis and charts that log your health indicators, including basal body temperature, cervical fluid, cervical position, medications, life events, etc.

The app’s algorithm also learns more with every cycle, leading to more accurate predictions over time. This can be helpful for those with irregular cycles, but remember that these apps’ predictions shouldn’t be taken as gospel.

Device compatibility

Conveniently, the app lets you sync it to your Fitbit and Apple Health, including the Apple Watch.

Noteworthy features

The app also offers:

• Educational resources: The app features science-backed articles on various topics, such as irregular periods, cycle tracking, mental health, etc.
• Community: The app’s anonymous community page isn’t as engaging as other apps’, but is still informative. You’ll need to answer each post’s poll before being able to view the comments or comment yourself.

Data privacy

The app asks for your personal information and geolocation, including your state. Due to this, some users mention that they feel uncomfortable using the app after the overturning of Roe v. Wade. Ovia’s privacy policy says it may provide your account records to authorities if they have a valid and legally-binding request (e.g., subpoena, court order), and that it will take steps to limit what information it turns over.

The app may share a lot of your personal info with third parties (including your employer if you’re using it through a work sponsorship), but Ovia says it complies with data-privacy laws such as the Health Insurance Portability and Accountability Act (HIPAA).

You’ll need to head to the settings to see exactly what you’ve automatically opted in or out of and change your preferences as needed. You can also delete your account.

This app is well known for its simplicity and straightforwardness, and it’s a favorite among those who prioritize basic period tracking over complicated data logging and charting with multiple symptoms and life events.

Core features (free vs. paid subscriptions)

The basic plan will more than suffice for most, but you can still check out this comparison if you’re curious about an upgrade.

Free features

• Basic cycle tracking (log and predict periods, ovulation, and fertility windows)
• Symptom and mood logging
• Reminders for upcoming periods, ovulation, and fertility windows
• Basic customization (limited themes)
• Multi-account creation within the app.
• Discussion forums
• Two soundscapes (ambient sounds)

Premium features

For $8 a month or $60 a year, you’ll be able to access:

• Ad-free experience
• Advanced analytics to help you understand your body better
• Menstrual relief courses
• More themes and customization options
• Exercise tutorials

If you just want to get rid of those pesky ads, it’ll cost about $3.

Ease of use and performance

You don’t have to sign up for an account, but doing so lets you save your data in case there’s a problem or you want to change devices.

The user-friendly interface is perfect for beginners who don’t want to bother with complicated data fields. Logging your symptoms, mood, flow, weight, temperature, and more is a one-tap process.

Unfortunately, some women report having difficulty manually inputting or editing data when they make mistakes (or if they have an abnormal cycle). There are also many disruptive ads that can ruin the experience; even opening the app can feel like an ordeal sometimes.

Device compatibility

The app is compatible with Wear OS devices and the Apple Watch.

Noteworthy features

Here are some features that stand out:

• Forum: The app is linked to an archaic forum for user discussions on menstrual cycles, lifestyles, and general wellness. As usual, ask your doctor to confirm any advice you plan to act on.
• Cycle sharing: You can share updates about your cycle with your partner or friend.
• Multiple account tracking: The app lets you create different accounts within the app, so you’ll be able to track your partner, friend, and relative’s menstrual cycles.
• Educational resources: Discover articles, courses, and other useful tools, such as exercise tutorials, that empower you to learn more about managing your health.

Data privacy

Figuring out the app’s policies is a little confusing. On the Google Play Store, the developer is listed as Simple Design, and on the Apple App Store, Abishkking. They have inconsistent or ambiguous privacy policies across platforms—particularly regarding how they share your data and if they rely on service providers who may sell it.

As mentioned, the app allows you to use it without an account, so your health information gets stored locally on your device. You can also lock your account on your phone with a PIN, password, and fingerprint.

Stardust offers a fun approach to period tracking for those who enjoy astrology, lunar cycles, and spiritual wellness. If you’re not as interested in those features, the app can feel a little limited.

Core features (free vs. paid subscriptions)

Here’s what you need to know about the free plan and subscription.

Free features

The basic plan offers:

• Basic period, hormonal, and pregnancy tracking
• Symptom tracking
• Overviews of your cycle’s phases (ovulation, follicular, period, luteal)

Premium features

For $2.99 a week or $24.99 a year, you can access:

• Partner tracking
• More advanced symptom tracking
• Ability to sync your data with friends

Ease of use and performance

The app is known for its quirky, aesthetic interface. However, if you’re not familiar with astrology and all it entails, the interface may feel a little cluttered or confusing. It also sometimes lags and glitches.

You can log symptoms with each phase of your cycle, such as:

• PMS symptoms
• Cravings
• Moods
• Flow heaviness
• Cervical music
• Gut health
• Daily activities

While the design is aesthetically pleasing, it isn’t as functional as other apps that show you detailed charts of your cycles and symptoms. However, it goes fairly in-depth about how your hormonal changes during your cycle may affect you.

Some women with irregular or longer periods report that the app hasn’t been helpful for them, and others note that some of the symptoms are oddly specific (e.g., having a craving for macaroni and cheese).

Device compatibility

You can sync your data with Oura, Apple Health, and Apple Vision. However, a few women report issues with their data not syncing correctly or having to close and reopen the app to fix glitches.

Noteworthy features

Here are the standout features:

• Cycle syncing: The app lets you track your friends’ cycles using their account ID. Sometimes, adding a certain number of friends (and having them add you back) can unlock perks, like a free trial of the premium version.
• Astrological insights: If you’re interested in astrology, you can discover how your cycle aligns with your zodiac sign and the moon’s position.

Data privacy

Stardust has received criticism in the past due to its data privacy practices and policy. Some highlight that the language in the app’s policy insinuates that it will share your data with law enforcement upon request, even when not legally required to (such as in the case of a warrant).

In the past, the app shared user phone numbers with a third-party analytics company, Mixpanel, despite this practice not being outlined in their policy.

The app uses end-to-end encryption and Rownd, a user authentication platform that helps Stardust decouple your data from your real-world identity. However, note that you’ll still need to create an account, which could lead to your data being stored and shared.

The best period tracking app for you depends on how well you want to understand your cycle and how diligently you can keep track of your body’s patterns. If you find yourself between two options, it’s OK to just pick whichever app you happen to vibe with—the most important thing when it comes to tracking your menstrual cycle is to use the app regularly, so you should get one you actually enjoy using.

If you have irregular cycles, it’s also a good idea to ask your doctor for recommendations.