Gone are the days of tracking your period with a notebook and a calculator. Thanks to powerful AI technology, we now have access to a range of fertility tracking apps that can help us do things like predict our periods, estimate our fertile windows, and make good decisions about our reproductive health. 

But with so many apps to choose from, how do we know which one is right for us? 

We hope to help you answer that question for yourself by taking a deep dive into nine of the very best ovulation tracker apps in 2023. We’ll also take a quick look at who may need to use an ovulation tracking app, when to use them, and when you should see your doctor. 

What is an ovulation tracker app?

An ovulation tracker app is an app for your phone or tablet designed to help you keep track of key milestones and characteristics of your menstrual cycle. Its purpose is to help you predict ovulation in order to plan (or avoid) pregnancy. 

Typical things that can be recorded in an ovulation tracker app include the dates of your period, basal body temperature (BBT), cervical mucus characteristics, mood, and sleep. This information is then used to estimate your fertile window and day of ovulation. The app’s accuracy tends to improve over time as it collects more data related to your individual cycle. 

Overview of the best ovulation tracker apps for 2023

• Mira Fertility & Cycle Tracker 
• Ovia Fertility & Cycle Tracker
• Glow
• Clue
• Fertility Friend
• Flo
• Period Tracker
• Eve 
• Natural Cycles

✅ The Mira App 🏆 Our Top Choice

• Price: Free.
• Ratings: 4.7/5 stars (Apple), 3.4/5 stars (Android)

Download it

Pros

• Free to download. No ads. No in-app purchases.
• Unique AI technology was co-developed together with renowned OB/GYNs.
• What sets it apart from many other cycle calendars is that the algorithms are specifically trained on real hormonal values derived from over 370,000 menstrual cycles and get smarter every day. Unlike other apps that rely solely on user-entered period days, this app has been trained and optimized using over 4 million hormone data points.
• A good option for users with irregular cycles or PCOS.
• The app seamlessly processes multidimensional data, including various types of hormone data points, cycle data, temperature, cervical mucus, mood, medications, and more. This comprehensive approach ensures a holistic analysis of your cycle.
• Partners Mode: For those on a fertility journey with a partner, the app offers a convenient feature that allows you to share access to your cycle data. This way, your partner can stay informed and check anytime to know if it’s your ovulation day, PMS phase, or any other stage of the cycle.
• There are multiple modes available within the app, including a user-friendly calendar view, informative hormonal and basal body temperature (BBT) charts, and a daily status section featuring valuable tips and insights.
• Empower yourself with fertility education through the app’s extensive library of articles, webinars, and free ebooks. These resources are carefully curated and authored by medical experts, providing reliable information on fertility and hormones.
• You have the option to purchase Mira’s revolutionary at-home hormone monitor. This cutting-edge device allows you to pinpoint and confirm ovulation with lab-grade accuracy. However, it’s important to note that the app can be used effectively without making any purchases.

About Mira Fertility & Cycle Tracker

Mira is a FDA and CE-listed comprehensive women’s health monitoring solution. Their core product is at-home hormone monitor designed to help individuals predict ovulation and estimate their fertile window.

However, the Mira App can still be used as a standalone ovulation tracker for free without the hormone testing element.

The main features of the Mira App are the calendar and cycle analysis, which help users predict their fertile window and ovulation. The Mira App also includes a range of helpful articles, e-books, and webinars to further support individuals along their fertility journey. 

What sets Mira apart

Mira offers users a comprehensive fertility health monitoring solution. From basic fertility awareness and cycle tracking to more advanced hormone tracking to plan a pregnancy. 

✅ Ovia

At a Glance

• Price: Free
• Ratings: 4.8/5 stars (Apple), 4.6/5 stars (Android)

Pros

• Completely free
• Backed by science and empirical research
• Part of the Ovia Health app family
• Integrations with Apple Health and Fitbit

Cons

• Access to full premium benefits only available through certain health plans

About Ovia

Ovia Health is a digital platform dedicated to providing clinical support in the areas of women’s health, family building, maternity, paternal well-being, and children’s health. All of Ovia’s content and programs are backed by scientific research which has been published in over 50+ peer-reviewed publications. 

Access to the premium version of the Ovia Health platform is only covered by certain health plans. However, Ovia does have three completely free apps that anyone can use. One of these free apps is ‘Ovia Fertility’, and it can be used as a standard fertility tracker to predict ovulation and estimate your fertile window. The app also provides users with daily TTC tips along with access to 2,000+ helpful articles related to fertility. 

What sets Ovia apart

Although a premium membership is required to enjoy the fully integrated Ovia Health experience, the free Ovia Fertility app still provides users with a ton of value. The added support available also makes this an attractive option for those on a budget.  

✅ Glow

At a Glance

• Price: Free. Premium subscription available for $47.99/year, $29.99/3 months, or $79.99 for lifetime access
• Ratings: 4.7/5 (Apple) / 4.4.5 (Android)

Pros

• Support across entire fertility journey (from period tracking to parenting)
• 2.4 billion health data logged for more accurate insights and predictions

Cons

• Access to full features requires subscription
• Must download multiple apps for full experience

About Glow

Glow is a women’s health tracking platform that offers four different apps: Eve (period tracking), Glow (ovulation tracking/pregnancy planning), Glow Nurture (pregnancy health), and Glow Baby (children’s health). 

You can download and access the basic functionalities of each app for free. However, to gain more in-depth insights into your health, you must purchase a premium subscription. This premium subscription cost averages around $4-$10 per month depending on whether you pay annually or quarterly. You can also purchase a lifetime subscription for $79.99. 

The Glow ovulation tracker app has similar features to other ovulation trackers. This includes AI-driven fertility charting and period tracking on your personalized calendar. The premium subscription offers several bonus features including access to premium articles, comparative insights with other users, and the ability to customize your profile. You also receive added support from the customer support team. 

What sets Glow apart

Glow is great because its family of apps is there to support you through the entire fertility journey. It’s also important to note that the subscription works across the app family, so you only have to manage one account and subscription payment. 

✅ Clue

At a Glance

• Price: Free. Premium subscription available for around $5/month or $30/annually (although this can vary depending on the region)
• Ratings: 4.8/5 stars (Apple) / 4.4/5 stars (Android)

Pros

• Clear, easy-to-use interface
• Captures the full fertility experience in one app

Cons

• Access to full features requires subscription

About Clue

Clue is an app dedicated to helping individuals learn more about their reproductive health and keep track of their menstrual cycle. The free version of Clue offers a number of tracking categories including period dates, feelings/emotions, cravings, digestion, BBT, weight, activities, and more. You can also keep track of other medical details such as IUD dates, medications, and birth control. 

With Clue Plus, you can gain access to even more features and support. This includes personalized cycle overviews, advanced cycle predictions (up to six cycles), premium content and articles, and in-depth analyses of your cycle patterns. A premium subscription also enables you to set the app into the mode of your choice, with the available modes being period tracking, pregnancy tracking, and digital birth control (coming soon). 

What sets Clue apart

Clue is one of the most comprehensive period/ovulation tracking apps available. Unlike other brands that require you to download multiple apps depending on your fertility goals, Clue makes things simple by keeping everything housed in one single app. 

✅ Fertility Friend

At a Glance

• Price: Free. Premium subscription available for $9.99/month or $19.99/ 3 months
• Ratings: 4.8/5 stars (Apple) / 4.8/5 stars (Android)

Pros

• Extensive experience in online fertility tracking
• Only one app to download
• Advanced insights and customizations available for VIP members

Cons

• Access to full features requires subscription

About Fertility Friend

Fertility Friend has been in the online fertility charting game since 1998. Their ovulation app is completely free to download and use. Basic features of the free version include data entry for things like period dates, BBT, cervical mucus characteristics, and mood. The free version can also estimate ovulation and provide users with individual cycle statistics. 

If you choose to subscribe as a VIP member, you will have access to a more advanced calendar with improved forecasting for your period, ovulation, and fertile days. You will also receive access to the official message board for additional support.

What sets Fertility Friend apart

Fertility Friend is an experienced and trusted leader in the online fertility charting space. The free version of the app is simple and trustworthy – perfect for budget-friendly individuals still learning about fertility tracking. 

✅ Flo

At a Glance

• Price: Free. Premium subscription available (pricing varies)
• Ratings – 4.7/5 stars (Apple) / 4.6/5 stars (Android)

Pros

• Sleek and modern user interface
• Advanced AI software for more accurate predictions

Cons

• Access to full features requires subscription
• Pricing information is vague 

About Flo

Flo is an app dedicated to helping individuals feel more in control of their bodies with the help of AI-powered technology. 

The free version of Flo allows users to track over 80+ symptoms related to their fertility, menstruation, general health, and well-being. The free version also provides users with period and ovulation predictions, custom reminders based on health goals, and basic health insights. 

Flo premium users have access to more advanced features such as a daily well-being plan, extra content and video resources, and unlimited access to Flo’s Health Assistant chats. 

What sets Flo apart

Flo is often recommended as the best option for individuals with irregular periods. This is because its AI software has been reported to improve irregular cycle predictions by 54.2% compared to other apps. 

✅ Period Tracker

At a Glance

• Price: Free. Premium subscription available for around $10/month
• Ratings: 4.9/5 stars (Apple) / 4.9/5 stars (Android)

Pros

• Simple and easy to use
• Lots of symptoms available to track
• TTC mode available for free

Cons

• Access to full features requires subscription

About Period Tracker

Period Tracker by GP apps is a basic app that allows you to log your period dates. The app then predicts when your next period may be. In addition to basic period tracking, the app also allows you to keep track of other menstrual symptoms such as spotting, flow, bloating, and aches. Similar to other apps, you can also log things like your weight, BBT, and mood.

While this app is advertised as only a period tracker, you can also set it to “TTC” or “pregnancy” mode for additional information, tips, and insights.

Premium subscribers have access to additional features such as a support community, long-term charting, additional resources, and customized notifications. The premium plan is also ad-free. 

What sets Period Tracker apart

Period tracker is an excellent option for those looking to simply track their period. While it doesn’t offer extensive tracking capabilities for those TTC, it does allow you to track a range of general health symptoms. 

✅ Eve

At a Glance

• Price: Free. Premium subscription available for $47.99/year, $29.99/3 months, or $79.99 for lifetime access
• Ratings: 4.7/5 stars (Apple) / 4./5 stars (Android)

Pros

• Easy period tracking
• Tips and advice related specifically to sex

Cons

• Access to full features requires subscription
• Limited TTC insights and advice

About Eve

The Eve app is a member of the Glow family, and its purpose is to help individuals stay on top of their period and sex lives. 

In addition to basic period and fertility charting, Eve also allows users to track their mood, symptoms, and sex. Unlike the Glow app which provides content and advice centered around fertility awareness, Eve is more focused on sex, periods, and birth control. 

Those with a premium subscription can benefit from additional features such as access to premium content, comparative insights, and extended profile customizations. 

What sets Eve apart

What sets Eve apart from other period tracking apps is its focus on sexual health. This includes a daily sex quiz and the ability to log sex-related data related to libido and intercourse. 

✅ Natural Cycles

At a Glance

• Price: $12.99/month or $99.99 for annual subscription
• Ratings: 4.0/5 stars (Apple) / 4.7/5 stars (Android)

Pros

• FDA-cleared to use as birth control
• Simple, easy-to-use interface

Cons

• Must subscribe to use
• Must commit to measuring BBT daily
• No in-app articles or additional resources

About Natural Cycles

Natural Cycles is the first birth control app cleared by the FDA. It does not require a prescription, and it is estimated to be 93% effective at preventing pregnancy with typical use. 

To use Natural Cycles, you must measure your BBT daily right after waking up and record it in the app. The app then uses an algorithm based on your BBT and cycle data to determine whether or not you are fertile (so that you know if you need to use protection or not). 

What sets Natural Cycles apart

Natural Cycles is one of the only apps FDA-cleared for use as birth control. However, thanks to its “Plan Pregnancy Mode”, it can also adapt as your fertility goals change. 

When to see a doctor

If you are actively planning a pregnancy but struggling to get pregnant, it is a good idea to speak with a doctor if you:

• Are under the age of 35 and have not conceived within one year
• Are over the age of 35 and have not conceived within six months

You may also want to see a doctor if you are experiencing painful periods that disrupt your day-to-day life, or, if you are experiencing sudden changes to your period and you are under the age of 45. 

Ovulation Tracking FAQ

Who should use an ovulation tracking apps? 

There are certain groups of people who benefit the most from using an ovulation tracking app. This includes individuals who are:

• Using the calendar method to actively plan or avoid pregnancy 
• Struggling to get pregnant due to conditions like PCOS

However, it’s important to note that any individual of reproductive age can benefit from using an ovulation tracking app to stay in tune with their reproductive health. 

How much do ovulation tracking apps cost? 

Ovulation tracking apps are typically free to download. However, additional purchases and subscriptions may be necessary in order to use the app to its full extent. 

When should you use a fertility tracker?

The best time to start using a fertility tracker is on the very first day of your cycle (i.e. the first day of your period). However, it’s perfectly fine to start tracking other symptoms (such as cervical mucus, BBT, and mood) ahead of time.