Best 7 Fertility Apps in 2026: Compare Features and Fit

Introduction

Fertility Friend is the strongest overall fertility app for people who want to chart several signs at once. This roundup compares seven options for cycle predictions, fertility tracking, and different levels of detail, with apps for iPhone and Android. Keep in mind that predictions are estimates, not a substitute for medical advice.

Quick comparison table

Fertility Friend and Kindara focus on charting body signs. Clue and Flo pair fertility features with broader cycle tracking, while Ovia also includes pregnancy tools. Premom puts the focus on fertile timing. Use the table as a starting point: features, prices, and availability can change, so check the current store listing before downloading.

1. Fertility Friend FF Tracker

Best for: Detailed fertility charting.

If you want to compare several signs over time, Fertility Friend FF Tracker brings basal body temperature, cervical fluid, and ovulation test results together in a chart. This can help users spot fertile days and observe ovulation patterns across cycles.

The main draw is having multiple fertility indicators in one chart instead of relying only on period dates. It may suit people who don’t mind entering details regularly and want a fuller view of their cycle.

2. Kindara: Fertility Tracker

Best for: Customizable fertility-sign tracking.

Kindara: Fertility Tracker lets users chart basal body temperature and cervical mucus, then uses that recorded data to make fertility predictions. Its range of tracking options may appeal to people who want to choose which signs to log and tailor their chart to their preferences.

Kindara’s key feature is customizable charting of fertility signs. Compared with a basic period calendar, it offers a more hands-on way to record changes that may help users understand their cycle. Predictions are still estimates, so treat chart entries as information to review over time, not a guarantee of fertile timing.

3. Clue Period & Cycle Tracker

Best for: Fertility predictions within a broader reproductive-health app.

Clue Period & Cycle Tracker combines menstrual and reproductive-health tracking with personalized ovulation and fertile-window predictions. It also has a mode for people trying to conceive, giving its fertility features a more specific purpose than general cycle tracking alone.

A trying-to-conceive mode sits alongside broader cycle tracking. That mix may work for someone who wants fertility predictions and other cycle information in one app. Clue is less focused on detailed charting of several fertility signs than tools such as Fertility Friend.

4. Flo Cycle & Period Tracker (iOS)

Best for: iPhone users tracking cycles and fertility signs together.

Flo Cycle & Period Tracker tracks periods and predicts ovulation and fertile windows. Users can also log fertility signs, including LH test results and basal body temperature, keeping those notes with their cycle predictions.

Logging both LH tests and basal body temperature is a useful feature for people who want to keep test results and temperature changes alongside period tracking. Flo’s predictions are estimates. This iOS listing is separate from the Android Flo app below.

5. Flo Ovulation & Period Tracker (Android)

Best for: Android users tracking periods and ovulation.

Flo Ovulation & Period Tracker predicts ovulation and fertile windows, and supports period tracking. Users can log LH test results and basal body temperature to keep fertility signs alongside cycle information.

This app lets users log fertility signs within a period tracker. It’s the Android listing, separate from the iOS version above, so choose the one that matches your phone. Like any cycle-based forecast, predicted timing is an estimate, not confirmation of ovulation.

6. Ovia Cycle & Pregnancy Tracker

Best for: Android users who want fertility and pregnancy tools together.

Ovia Cycle & Pregnancy Tracker includes an ovulation calculator and fertility tracking, along with cycle and pregnancy features. Its broader mix may suit people who want more than a standalone cycle chart or prefer fertility information in an app that also has pregnancy tools.

Ovia combines an ovulation calculator with pregnancy features. That’s a different focus from charting apps centered on recording temperature, cervical fluid, or test results. Check the current listing to see which features fit your needs.

7. Ovulation Tracker App - Premom

Best for: Android users focused on fertile timing.

Ovulation Tracker App - Premom supports fertility and ovulation tracking, including period tracking and tools for identifying the peak fertility window. It may suit people who want a clear view of fertile timing rather than a broader reproductive-health app.

Its focus on the peak fertility window sets it apart. Premom is worth comparing with more detailed charting tools, but the right choice depends on how much information you want to record and review. Predictions are estimates, not a medical assessment or a guarantee of pregnancy.

How we picked these apps

We focused on features directly related to fertility and ovulation tracking, not popularity claims or unverified medical outcomes. The apps differ in what they let users record. Fertility Friend and Kindara chart signs such as temperature and cervical fluid, while Flo supports LH test and basal body temperature logging. Other options lean more on predictions, cycle tracking, or pregnancy features.

This list includes options for iOS and Android, though some apps appear here on only one platform. We compared stated features and use cases, without ranking apps by effectiveness or pregnancy outcomes. Features and platform availability can change, so check the current app-store listing.

Frequently asked questions

How do fertility apps estimate ovulation?

Many use period dates and cycle patterns to estimate ovulation and the fertile window. Timing varies between people and from cycle to cycle, so a prediction may not match what happens in a given cycle.

Do fertility signs guarantee pregnancy?

No. Basal body temperature and LH test results can offer more information about cycle timing, but neither an app nor those signs guarantee pregnancy. Period-based predictions provide one estimate, while apps that let users record several signs offer more observations to consider.

What should I check before choosing an app?

Check the current app-store listing for platform availability, features, pricing, and privacy details. If you have irregular cycles or concerns about fertility, talk with a healthcare professional.

The verdict

Fertility Friend is the strongest overall choice for charting several fertility signs and reviewing ovulation patterns. Kindara is a good runner-up for customizable tracking, while Clue pairs fertility predictions with broader cycle features. Choose based on your phone’s platform and how much detail you want to record.