Take control of your unique menstrual cycle with Femometer, the smartest fertility tracker. Know your body, know you.
Femometer is a smart period tracker and ovulation calendar that understands your unique cycle and is able to accurately predict your fertile window, pinpoint your ovulation.
Auto recognizes LH and HCG test results. Daily advice for conception and ovulation prediction created by machine learning algorithms that learn from your data. All data can be exported into PDF files for professionals.
Prenatal tests, BBT, weight logging for a mother-to-be, and fundal height logging for an unborn baby means we can accompany your every step. Let's be more healthy & fitness!

Period Tracker, Ovulation Calendar & Fertility Calculator
- Log cycle symptoms, periods and learn about your unique cycle to manage your fertility
- Record BBT (basal body temperature), LH tests, and CM (cervical mucus). Intelligently recognizes your LH & HCG (pregnancy) test results. See your fertile days easily and predict your ovulation accurately.
- Log BBT and weight of mother-to-be, spot abnormal symptoms quickly. Record prenatal tests, fetal movements, and contractions to track the baby’s daily health
- Export your data in PDF files and share them with professionals.
- Log 200+ symptoms, from fertility to lifestyle and health. Professional female health tracker.

Fertility Calendar & Graphs & Curves
- Check your fertility calendar, easily identify your cycle phases and predictions. Manage your fertility like a pro.
- Auto-generated BBT curves and LH curves. Easily recognize the different phases of your cycle and spot subtle differences. Capture your peak results to conceive or predict the next ovulation.
- Auto-generate BBT Curve during pregnancy to observe your pregnancy and to prevent potential miscarriage
- Optimize curves with machine learning algorithms to complete missing data, making it easier to interpret.
- Compare your curve to curves in our database, easily detect pregnancy, luteal deficiency, PCOS, miscarriage, etc.

Fertility Insights
- Current & Previous Cycle Interpretation: Analysis of BBT curves, LH, CM, and ovulation symptoms. Predict ovulation and reveal the conception rate to help manage fertility with precision.
- Conception Guidance & Prediction: Daily conception advice. Get pregnant easily and spot pregnancy early
- Behavioral Scoring: Correct tracking behavior leads to accurate ovulation prediction, increasing the chances of pregnancy, and increasing fertility management effectiveness.
- Statistics Analysis: Reveal the patterns of your cycle symptoms, compare and analyze data in multiple ways, gain better insights into your fertility

Health Tips, Fertility Courses & User Community
- Scientific and structured fertility courses & daily health tips from professionals to help you manage your fertility

This application is intended for general informational purposes and should not be used or relied on for any prevention, diagnostic or treatment purposes. The medical information on the application is provided as an educational resource only and is not a substitute for professional advice, diagnosis, and treatment. The company does not guarantee the accuracy, completeness, or usefulness of any content, whether provided by us or by the third party. Always seek the advice of a physician before making any healthcare decisions.

Subscription Policy
- Plans: $9.99 Monthly, $19.99 Quarterly, $49.99 Yearly
- Payment: Payment will be charged to your Apple account on confirmation of purchase
- Cancellation: Manage at your Apple Account Settings
- Renewal: Account will be charged for renewal 24-hours before the end of the current period

- Femometer Privacy:
- Femometer Service:

The Femometer integrates with Apple Health App so you can sync your data (requires iOS 9 and above). Femometer also supports Face ID for security.

What’s New

Version 4.12.1

- Bug fixes and user experience optimized

Ratings and Reviews

4.9 out of 5
23.7K Ratings

23.7K Ratings

jsaf14 ,

*Updated!* Can Not Log In

I would like to update my review based on customer service alone! Not long after posting my initial review, I was contacted by customer service asking to help correct my issue. I sent an email explaining the issue I was having, and in less than 24 hours I can log into the app with no problem. I look forward to getting to use this app, and am so appreciative of the customer service I received.

I was excited about trying this app and ordering the LH detection strips, however simply getting into the app is impossible for me. I tried creating an account, but it said my email address already has one (but I’ve never downloaded this app before). I clicked “Forgot Password” and went through the steps of resetting my password. I tried logging in again with the newly created password only to be told it was incorrect. I tried different emails, using my phone number to create an account, and numerous resets. Nothing granted me access to the app. I read the other great reviews and was so excited to try this app, but I am frustrated before I even have an account. If someone can offer assistance in this matter, I will happily delete this review and write a more accurate one once I am in the app. I saw no other way to try and figure out what is going on and why I can’t get into the app. Thanks in advance.

Developer Response ,

Hi, sorry for the inconvenience, can you contact us via email: We'll help you to solve it.

SeaArcher ,

Has everything

I waited for a while before reviewing this app. I has used it for a month and am very pleased with the app. It was slightly frustrating at first. I have severely irregular cycle from one a month to one a year irregular.
My husband and I tried for five years to get pregnant with our son and two and half years to get pregnant again. The one thing this app has above all the rest in you can put down when you and your husband have been intimate. Something I had a hard time putting down on my iphone's calendar. This along with having ovulation strip impute it reads itself and the charting was great! There were no hidden fees or costs to improve the app. I have tried tons of apps like this and so far this has been the best. I needed some help imputing a miscarriage and when I emailed the support team I get a detailed response within 24 hours. You don't have to buy the thermometer that syncs with the app but considering I believe it is what supports the cost of the app I highly recommend getting it if you like the app. Takes a bit to get the hang of it but so worth it for being the whole package!
This is the first five star review I have given an app and I review tons of apps

RandomNickname1 ,

Best period/fertility tracker

I have been using periodtracker for years now. I dl this app when I bought the basal thermometer to work with the app bc I have been on bc for most of my adult life and always have really serious issues with hormones. Until two weeks ago, I had the Paragaurd IUC for 4.5 years which I also seriously struggled with. I decided to learn and track my fertility as a means of natural birth control. I absolutely love the app. It has a lot of really cool features and lets you track a lot of different fertility symptoms ( weight, cervical mucus, basal temp, LH tests, cervical position, periods, moods, cravings and so much more in ways that are easy to understand and document. The LH test photo upload stunned me. It actually reads and logs the photo and can tell you approximately how much LH is in your urine based on your photo. -Genius. The thermometer that comes with it automatically syncs your temp to the app, or you can manual input. -Awesome. My only complaint, my thermometer will not sync to the Bluetooth on my iPhone. So I use my bfs phone to use the thermometer and save and log in and out of the phones as needed to document or review. I would give the app 10 stars, if only my thermometer worked on my phone. Otherwise, I love it. By far the best app I have ever seen for period/fertility tracking.


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App Privacy

The developer, Bongmi Global Group, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Identifiers

Data Linked to You

The following data may be collected and linked to your identity:

  • Health & Fitness
  • Contact Info
  • User Content
  • Identifiers
  • Usage Data
  • Sensitive Info
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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