Best Ovulation Tracker App in 2026: 8 Apps Compared

Flo is our pick for general cycle tracking because it covers periods, symptoms, pregnancy, and health content in one app. You can log bleeding, symptoms, mood, and other signs, and the app estimates your cycle and fertile window from that history. Its content library covers cycle health, fertility, and pregnancy topics, which many users value alongside tracking.

Some features, including the virtual health assistant, secret chats, and expert videos, sit behind Flo Premium, so check the current Premium price in your app store. Flo also offers an Anonymous Mode for tracking without personal identifiers linked to health data. Read its current privacy policy before you log sensitive data, and decide whether its controls suit you.

Clue takes a plainer, science-led approach than Flo. It lets you track periods, symptoms, pain, mood, and other signs, including tracking without regular bleeding, which suits people with irregular cycles. Its predictions are based on your logged data, and its design avoids pink, gendered assumptions that some users dislike in other trackers.

Clue Plus adds extra features, so check the current Plus price in your app store before you upgrade. The free tier covers core tracking well. Clue is based in Europe and publishes a clear privacy policy, which many users weigh heavily when choosing a health app. For straightforward, privacy-conscious tracking, Clue is a strong pick.

Ovia Fertility is built for people trying to conceive, with cycle and ovulation tracking at its core. It also connects to Ovia Pregnancy and Ovia Parenting apps, so tracking can continue through pregnancy and early parenting without starting over. Content covers fertility, nutrition, food safety, and pregnancy health, which suits people who want guidance alongside dates.

The app is free to download, though some premium features are offered through employers or health plans rather than a simple store subscription. That structure can confuse pricing, so check what is included in your version before you rely on a feature. For pregnancy planning with a longer view, Ovia is a well-rounded choice.

Glow focuses on fertility, with ovulation and cycle tracking plus a large community where users share experiences while trying to conceive. It also offers separate pregnancy and baby trackers for later stages, so the Glow family can follow you from planning through early parenting. That community support is the main reason many users stay with Glow.

Full features sit behind Glow Premium, so check the current yearly price in your app store. Be careful with community posts, since anything you share in a forum is less private than your personal log. Keep sensitive notes in your private tracker and use the community only for general support.

Natural Cycles is different from the calendar apps above because it bases predictions on daily basal body temperature, measured with a thermometer or a compatible wearable. That temperature data personalises predictions to your body, rather than assuming a standard cycle length, and it explicitly supports irregular cycles. It is also the only app in this list cleared by regulators as a contraceptive method in some regions, when used as directed.

That clearance does not make it casual to use. It needs a paid subscription, consistent daily temperature logging, and careful reading of its instructions, especially if you use it to prevent pregnancy. Check the current subscription price on the Natural Cycles site. For people who want a data-led, temperature-based method, it is the most distinct option here.

Premom is built around ovulation predictor tests. You can scan test strips with your phone camera, and the app reads the result and plots it against your cycle, which gives a clearer fertile window signal than dates alone. That strip scanning is its main advantage over calendar-only trackers, especially for people actively trying to conceive.

It works best with compatible test strips, and some features sit behind a Premium plan, so check the current price in your app store. The community is also fertility-focused, which suits people in the same stage. If you already use ovulation tests, or plan to, Premom turns those results into a usable chart with little extra effort.

Fertility Friend is a long-standing charting app for people who want detail. It charts basal body temperature, cervical mucus, ovulation tests, and symptoms, and its analysis tools help you spot patterns across cycles. Experienced fertility awareness users often prefer it for that depth, since it shows the raw data behind each prediction rather than hiding it.

The design looks dated next to Flo or Clue, and the most useful analysis features need a paid VIP plan. New users may also need time to learn charting terms. If you want detailed, data-rich charting and you are willing to log consistently, Fertility Friend is one of the most capable tools in this list.

Kindara focuses on fertility awareness charting, with temperature, cervical mucus, and cycle data plotted in a clear chart. It suits people who follow a fertility awareness method and want an app that respects that approach, rather than a simple calendar estimate. Community features let users share charts and ask questions, which helps new charters learn.

Its user base is smaller than Flo or Clue, so community answers may be slower. Some features also need a paid plan, so check the current price on the Kindara site. For fertility awareness charting with a clean, focused design, Kindara is a solid alternative to Fertility Friend.