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These are some of our top picks for the best fertility tracker apps.

Understanding your own biology can be particularly helpful if you’re trying to conceive. And today, technology can make tracking your cycle and fertility so much easier.

When it comes to family planning, there are a lot of factors that go into trying to get pregnant.

When you’re hoping to get pregnant, it’s helpful to know your fertile window and when ovulation is going to occur (ovulation is when your ovary releases an egg that can be fertilized by sperm). Knowing when you ovulate during your cycle will help you determine when you’re most fertile.

While sperm can actually survive for up to 5 days inside the uterus and fallopian tubes, the egg is only viable for 12 to 24 hours after it’s released, so knowing this critical window of time is important if you are trying to conceive.

As with many things these days, there’s an app for that.

While fertility tracking apps are great for helping with fertility and pregnancy, they’re also useful for tracking your PMS symptoms and menstrual cycle, so you can know when to expect your period. They can also help if you’re not trying to get pregnant, as well as with tracking signs and symptoms of menopause.

We rounded up the year’s best fertility apps based on their useful content, excellent reviews, and reliability.

If you do a quick search for fertility tracking apps, you’ll likely be overwhelmed by the abundance of options, many of which are not free. In choosing these apps, we considered details like:

  • customer ratings and reviews
  • price
  • availability and accessibility
  • tools and features

Best overall

Clue Period & Cycle Tracker

iPhone rating: 4.8 stars

Android rating: 4.4 stars

Price: Free with in-app purchases

Take the guesswork out of your menstrual cycle with Clue, a period tracker app that dives into your personal biology.

In order to provide the most accuracy, the app’s team collaborates with scientists and universities to keep the app’s predictions and developments as up-to-date as possible.

If you’re trying to conceive, the app can help you plan for pregnancy with its ovulation calculator and fertility predictions. If you are tracking your basal body temperature to check for ovulation, you can also enter this information directly in the app.

Overall, Clue is a comprehensive app that combines the best and most accurate aspects of tracking your menstrual cycles, ovulation, and fertility. Bonus: It’s free.

Download Clue Period & Cycle Tracker

Best for irregular periods

Flo Period & Ovulation Tracker

iPhone rating: 4.9 stars

Android rating: 4.6 stars

Price: Free with in-app purchases

This smart, simple app tracks your period, ovulation, and fertility. Featuring reliable fertility and ovulation calendars, the app uses machine learning, or artificial intelligence, to interpret your individual data for improved accuracy.

Flo also notifies you about your most fertile days, which are the most ideal for conception. It tracks your cycle, period, and PMS symptoms, and presents all of your data in handy charts.

Download Flo Period & Ovulation Tracker

Best for flexible tracking

Glow

iPhone rating: 4.7 stars

Android rating: 4.5 stars

Price: Free with in-app purchases

Take control of your reproductive health with the information you need to track your periods, track ovulation, and plan a pregnancy based on your most fertile days.

You can use Glow to track your cycle with the ovulation calculator and record symptoms, sexual activity, and day-to-day moods to optimize your chances of getting pregnant.

Download Glow

Best personalized data

Fertility Friend

iPhone rating: 4.8 stars

Android rating: 4.8 stars

Price: Free with in-app purchases

With an advanced ovulation calendar and period tracker, Fertility Friend offers useful insights into your fertility.

The app uses your data to create a personalized fertility chart with tips and analysis into trying to conceive. Plus, it will alert you on your most fertile days.

Download Fertility Friend

Best affordable download

Ovia Fertility & Cycle Tracker

iPhone rating: 4.8 stars

Android rating: 4.7 stars

Price: Free

The Ovia app provides customized and accurate period and fertile window predictions by using details about your periods, sex life, and symptoms.

Health summaries and statistics offer useful details, like your average cycle length, period length, and more. You can also check trends and insights on customized fertility charts.

Download Ovia Fertility & Cycle Tracker

Best birth control alternative

Natural Cycles – Birth Control

iPhone rating: 4.8 stars

Android rating: 4.7 stars

Price: Free with in-app purchases

This intelligent birth control app identifies ovulation by analyzing your basal body temperature (aka your temperature when you’re fully at rest). This is a key factor in tracking ovulation because your basal body temperature tends to rise after you ovulate.

Learn about your own cycle with daily updates that tell you where you are in your cycle, when you’re in the fertile phase, when ovulation is detected and predicted, and when to expect a period.

Download Natural Cycles — Birth Control

Best for symptom management

Period Tracker by GP Apps

iPhone rating: 4.8 stars

Android rating: 4.6 stars

Price: Free with in-app purchases

Featuring a simple interface, the Period Tracker app tracks predicted ovulation, the 8-day fertile window, and your cycle days — right on the home screen.

You can also track menstrual symptoms, weight, temperature, and moods, and look for patterns in the app’s comprehensive charts.

Download Period Tracker

Best for period tracking

Period Tracker

iPhone rating: 4.6 stars

Android rating: 4.4 stars

Price: Free with in-app purchases

This app makes it easy to track your cycle and get feedback about predicted periods and fertile days. Browse graphs for fertility, temperature, weight, moods, symptoms, period duration, and cycle length, and personalize your experience with a series of themes and fonts.

Download Period Tracker

Best for ovulation symptoms

Ovulation Calendar & Fertility

Android rating: 4.8 stars

Price: Free

This app lets you know when you’re most (and least) likely to get pregnant using the STM (sympto-thermal methods) approach, which uses your body temperature, presence of cervical mucus, and where you are in your ovulation calendar.

The app also uses your health data to up the accuracy of predictions and provides a huge database of articles about fertility, menstruation, and much more.

Download Ovulation Calendar & Fertility

Best for sexual health tracking

Eve Period Tracker

iPhone rating: 4.7 stars

Android rating: 4.4 stars

Price: Free with in-app purchases

Eve is a comprehensive app when it comes to fertility, sex, and health. It includes a 28-day ovulation calendar, plenty of tools to log your sexual experiences (even if they don’t involve actual intercourse), and a mood tracker.

Eve gives you what you need to see your fertility in the context of your entire experience of your sexuality, taking away the sometimes cold calculus that can go into tracking your ovulation and menstruation.

Download Eve Period Tracker

Best for PMS symptom tracking

Bellabeat Period Diary

iPhone rating: 4.7 stars

Android rating: 2.9 stars

Price: Free

Bellabeat Period Diary helps you keep track of your ovulation and all the symptoms and moods that come along with it. You can also export your data at any time to share with family, friends, or a healthcare professional when you need the data to make decisions about your health.

Download Bellabeat Period Diary

Best for ovulation and menstrual symptom tracking

Cycles

iPhone rating: 4.6 stars

Price: Free with in-app purchases

Sometimes it’s not enough to know the details about your ovulation and menstrual cycles. You may want to dive deep into your own data in the framework of the science around fertility itself, and this app gives you all the extra biological details you need to become an expert on your own cycles.

Best of all, you can privately share your info with your partner and create shared calendars around your cycles so you know exactly when to have sex if you’re trying to get pregnant.

Download Cycles

Best for pregnancy prevention

Period Tracker Period Calendar

iPhone rating: 4.9 stars

Android rating: 4.9 stars

Price: Free with in-app purchases

One of the best-rated ovulation trackers out there, this period tracker uses your ovulation data to give you a quick daily snapshot of how likely you are to get pregnant. The app also offers detailed logging tools for your symptoms, moods, and birth control so you never forget to take a pill.

Download Period Tracker Period Calendar

Best for quick hit data

Life Period Tracker Calendar

iPhone rating: 4.8 stars

Price: Free with in-app purchases

If you want utter simplicity in tracking your ovulation and getting data at a quick glance, this app is for you.

You can log your mood, symptoms, diet, and other daily habits along with ovulation to better assess the relationship between your cycles and your lifestyle.

The simple period history feature can help you understand your cycles in seconds so that you don’t have to puzzle over the details when you just want a quick download of your ovulation history.

Download Life Period Tracker Calendar

What is a fertility tracking app?

You can download a fertility app to your smartphone or tablet to help you plan or prevent a pregnancy, as well as track your menstrual cycle or symptoms of menopause.

By inputting your personal data, including your period start dates, basal body temperature, and notes about bleeding, spotting, and cervical mucus, you can receive individual details about where you are in your cycle and when it would be ideal to try to conceive.

Some apps may also provide a community where you can interact with other users or receive advice and insight from trusted reproductive health experts and professionals.

Why use a fertility tracking app?

If you’re trying to get pregnant, a fertility tracking app can provide you with the necessary information to determine your most fertile days.

Not only that, but tracking data such as unexpected bleeding or spotting, irregular bleeding, or unusual mucus patterns can help you note what to ask your doctor.

Additionally, if you’re not trying to get pregnant, a fertility tracking app can help you track when to expect your next period, making life easier and more convenient to plan.

How much do fertility tracking apps cost?

Most fertility apps are free to download and use at their most basic levels. However, some might charge additional fees for advanced features and accessories, such as thermometers to track your basal body temperature.

When should you see a doctor?

While fertility tracking apps can provide useful information to make family planning and cycle tracking easier, they’re never a substitute for individualized care and advice from your OB-GYN.

You shouldn’t skip annual visits, but if you’re having trouble conceiving or are experiencing any unusual symptoms related to your menstrual cycle and reproductive health, you should make an appointment to see a healthcare professional as soon as possible.

While there are a ton of fertility tracking apps out there, it’s best to narrow your selection down to one that best suits your needs, whether that’s related to trying to get pregnant or to tracking your menstrual cycle.

Although they all aim to provide accuracy, at the end of the day, if you’re not seeing results and have questions about your health and situation, it’s key to talk with a doctor to make sure something more serious isn’t going on.