Best Fertility Apps in 2026: 7 Apps Compared
How we put this together: we compare official feature and pricing pages, app store listings, privacy policies and public user reviews. Prices change, so check the provider's site before you pay.
Key takeaways
- Flo is the most complete all round fertility tracker, with a free core plan and a large content library, but its best features sit behind Premium.
- Clue is our pick for privacy minded trackers, with science based predictions and a clear stance on keeping health data out of advertising.
- Natural Cycles is the only app here cleared as a contraceptive device in the US, but it costs $149.99 per year and needs regular temperature readings.
- Ovia is free with no in-app purchases listed, and it carries tracking smoothly from trying to conceive into pregnancy and postpartum.
- Glow, Premom and Fertility Friend suit people who want community support, ovulation test integration or detailed charts, in that order.
Quick comparison
| Name | Who it suits | Starting price | Free option | |
|---|---|---|---|---|
| All round cycle and fertility tracking | Free | Yes | Visit | |
| Privacy and science based tracking | Free | Yes | Visit | |
| App based contraception | $21.99 per month | Free trial | Visit | |
| Free tracking into pregnancy | Free | Yes | Visit | |
| Community and fertility support | Free | Yes | Visit | |
| Ovulation test integration | Free | Yes | Visit | |
| Detailed fertility charts | See website | Yes | Visit |
The best fertility apps
Fertility apps deal with sensitive health data, so privacy matters as much as prediction quality. The apps below differ on that point, on price and on whether they focus on trying to conceive, avoiding pregnancy or both. A short note first: these apps are tracking tools, not medical advice, and anyone with irregular cycles, a known condition or a year of trying without success should talk to a clinician rather than relying on an app alone.

Flo is the biggest name in this category, and its strength is breadth. The free plan covers cycle and symptom tracking, ovulation predictions and a large library of health articles, while Premium adds an AI health assistant, secret chats and deeper insights. Partner mode lets a partner follow the same cycle updates, which helps when two people are planning together.
Privacy is the part to read carefully. Flo has faced regulatory action in the past over data sharing, and it has since added Anonymous Mode and updated its disclosures. That history does not disqualify it, but it does mean privacy minded readers should check the current policy and settings before logging sensitive data. For most users, Flo is the easiest all round start.
- Free core tracking with a large health content library
- Partner mode for sharing updates
- Anonymous Mode for extra privacy
- Premium prompts are frequent
- Premium pricing varies by plan and region, so check the listing before paying

Clue takes a quieter, more scientific approach. It tracks cycles, symptoms and moods with flexible categories that suit irregular cycles better than rigid calendar apps, and its predictions draw on research done with academic partners. Being based in Berlin, it operates under European privacy rules, and it states that it does not sell personal health data for advertising.
Clue Plus costs $9.99 per month or $39.99 per year and adds predictions, extra analysis and premium content. The free plan still covers core logging, so you can test whether its style suits you before paying. If privacy is your top concern, Clue is the first app to try.
- Science based predictions built with researchers
- Based in Berlin under European privacy law
- Flexible tracking for irregular cycles
- Plus subscription needed for predictions and some insights
- Community features are thinner than Flo or Glow

Natural Cycles is different from every other app on this list, because it is a regulated medical device cleared for contraception in the US, not just a tracker. It uses daily basal body temperature readings to estimate fertile days, showing green days when pregnancy is unlikely and red days when protection is needed. An annual plan includes a wearable band option for automatic temperature data.
That status comes with demands. You must take readings consistently, and the system works best with fairly regular cycles. At $149.99 per year, it is also the priciest option here, with a trial period rather than a free plan. Treat it as a contraceptive choice to discuss with a clinician, not as a casual tracker, and note that typical use failure rates apply as with any contraceptive method.
- FDA cleared as a contraceptive device in the US
- Red and green day system is clear to follow
- Works with a wearable band for temperature data
- Most expensive app here at $149.99 per year
- Needs regular temperature readings and suits regular cycles better than irregular ones
Ovia stands out on price and continuity. It is free to download with no in-app purchases listed, and it follows the same account from cycle tracking through pregnancy week by week content and into postpartum parenting features. Practical tools such as a kick counter, contraction timer and food safety lookup are included, which many rivals reserve for paid plans.
The trade off is ownership and scale. Ovia is part of Labcorp, a large laboratory company, so your data sits with a big health business even if the app itself is free. Some users also find the merged app busy, since it covers so many life stages at once. If you want one free app for the whole journey, Ovia is hard to beat on value.
- Free with no in-app purchases listed on app stores
- One app carries you from fertility tracking into pregnancy and parenting
- Kick counter and contraction timer included
- Part of a large lab company, so read the privacy policy
- Premium tools come through employers or health plans
Glow suits people who want company during a process that can feel lonely. Its community forums are active, and the app tracks the signals that matter for trying to conceive, including ovulation tests, temperature and cervical mucus. A single Premium membership covers the related Glow apps for cycle tracking, pregnancy and baby tracking.
The free plan is ad supported, and Premium costs $7.99 per month, so the full experience is not free. Glow also collects detailed health data, so check its privacy settings before logging. If peer support matters to you as much as charts, Glow is the pick here.
- Large community for people trying to conceive
- Tracks LH tests, temperature and cervical mucus
- One membership covers related Glow apps
- Free plan is ad supported
- Premium needed for the full insight set
Premom is built around one job: making ovulation tests easy to read. You photograph a test strip, and the app grades the result and plots it on your chart, which removes the guesswork of comparing faint lines by eye. That makes it a natural partner for anyone already using LH tests while trying to conceive.
The app itself is free to start, with Premium plans ranging from about $12.99 to $37.99 depending on the term. Test strips are a separate purchase, so factor that into the real cost. If you test regularly, Premom saves more hassle than any other app here, and its charts are clear enough to share with a clinician.
- Built to read ovulation test strips by photo
- Clear LH peak charts
- Free core tracking with affordable Premium tiers
- Test strips are an extra cost
- Premium prices vary by plan, from about $12.99 to $37.99
Fertility Friend is the chart lover's app. It offers the most detailed charting in this list, with custom data fields for temperature, cervical mucus, tests and symptoms, plus an analysis engine that interprets your chart day by day. Its VIP membership costs $45.99 per year, and its data export is genuinely useful if you take charts to a fertility appointment.
The interface is the weak point. It looks dated beside Flo or Clue, and new users may need a few days to learn where everything sits. If you want pretty design, look elsewhere. If you want the deepest chart and a community that has used it for years, Fertility Friend still earns its place.
- Most detailed charting of any app here, with custom data fields
- Long track record with the trying to conceive community
- Data export for clinicians
- Interface looks dated next to Flo or Clue
- VIP membership needed for advanced analysis
How we picked these
We compared official feature pages, app store listings and privacy policies for the leading fertility apps, and checked public reviews for complaints about predictions, pricing and data handling. We favored apps with a clear privacy stance, because fertility data is among the most sensitive data a phone holds, and we included both trying to conceive tools and a cleared contraceptive option so readers with different goals can compare fairly. Prices come from app store listings checked in October 2026 and can vary by region and plan.
What to check before you pick
A fertility app should fit your goal, your cycle and your comfort with sharing health data. Work through these points before you log a month of data in one place.
What is your actual goal?
Trying to conceive, tracking cycles generally, and avoiding pregnancy are different jobs. Natural Cycles is the only app here cleared for contraception, while Flo, Clue, Glow, Premom and Fertility Friend are built mainly for tracking and conception planning.
How regular is your cycle?
Irregular cycles weaken calendar predictions in every app. Clue handles irregular patterns more flexibly than most, and combining two signals, such as LH tests plus temperature, gives better ovulation timing than a calendar estimate alone.
What happens to your data?
Read the privacy policy before you sign up, not after. Check whether the app sells data, shares it with advertisers, stores it outside your region, or offers an anonymous mode. Delete or export your data if you switch apps, since health history is hard to rebuild.
Will your clinician see this?
If you plan to discuss fertility with a clinician, pick an app with clear charts and data export. Fertility Friend and Premom both produce charts that are easy to share at an appointment, which can save time and confusion.
Frequently asked questions
What is the best fertility app?
Flo is the best all round fertility app for most people, with free core tracking and a large content library. Clue is better if privacy leads your decision, and Ovia is better if you want a free app that follows you into pregnancy.
What is the best fertility tracker app for trying to conceive?
Premom is a strong pick when you use ovulation tests, since it reads test strips by photo and plots the results clearly. Glow adds community support, while Fertility Friend gives the most detailed charts for people who track several signals at once.
What is the best app for tracking ovulation?
The most reliable approach combines an LH test, which predicts ovulation a day or two ahead, with a temperature shift, which confirms it happened. Premom handles the LH side well, Natural Cycles handles the temperature side, and Clue and Flo combine calendar estimates with symptom logging.
Is Natural Cycles effective as birth control?
Natural Cycles is FDA cleared as a contraceptive device, and regulatory guidance notes that about 7 to 8 in 100 women become pregnant in a year of typical use. It needs consistent temperature readings and suits regular cycles best, so discuss it with a clinician before relying on it.
Are fertility apps private?
Privacy varies a lot. Clue operates under European privacy law and states it does not sell personal health data, while other apps have different policies and histories. Read the current privacy policy, use anonymous modes where offered, and avoid logging data you would not want shared.
What is the best free fertility app?
Ovia is free with no in-app purchases listed, and it covers fertility tracking, pregnancy and parenting in one app. Flo and Clue also offer useful free core tracking, with paid plans adding predictions and extra content.
Sources we checked (7)
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