Femometer vs Premom: how do they compare?
Femometer and Premom are both listed on HerFound, and both carry facts sourced from their own pages. On selling data, the same for both: says it does not sell personal data. Last checked Nov 12, 2026.
Updated . We don't pick a winner or publish ratings. This sets out what each company says, side by side.
Side by side
 Femometer |  Premom | |
|---|---|---|
| What it is | A fertility and period tracker: BBT charts, LH test reading and device syncing | An ovulation and fertility tracker: reads your ovulation test strips and charts your cycle |
| Price model | Freemium | Freemium |
| Platforms | iOS, Android | iOS, Android |
| Free version | — | There is a free version. |
| Paid plan | $9.99/month, $19.99/quarter or $49.99/year | $12.99 to $37.99 |
| Selling personal data | Says it does not sell personal data. | Says it does not sell personal data. |
| Advertising | Says some data is used or shared for advertising. | — |
| Where your data is kept | — | Your data is stored on the company's servers. |
| Deleting your data | You can delete your data or account from inside the app. | You can ask the company to delete your data. |
| Apple Watch | Has an Apple Watch app. | — |
Sources: each app's own privacy policy, help pages and US App Store listing. Open either app to read the exact passage behind each line and the date we checked it. “—” means we have not sourced that fact yet. This is what each company states, not an audit of what it does.
What Femometer does
People tracking their periods or trying to conceive, including those who want to follow a pregnancy, as described by Femometer.
- 📅 Log your period, flow, symptoms, BBT and cervical mucus
- 🌷 Period and fertile window predictions, including for irregular cycles
- 📈 BBT and LH charts built automatically
- 🧪 LH test strip reading: low, high or peak
- 🌡️ Pair Femometer devices so measurements sync to the app
- ⏰ Reminders and statistics on your cycle patterns
- 📚 Fertility courses, plus a pregnancy log for prenatal tests and baby progress
- 📄 Export your records to PDF
What Premom does
People trying to conceive who want to time ovulation using test strips, temperature and cycle data, including those with irregular cycles or PCOS.
- 📷 Photograph an ovulation test strip and get an LH value
- 📈 One fertility chart for LH, BBT, cervical mucus and symptoms
- 🌷 Period, fertile window and ovulation day predictions
- 🧪 Log PdG (progesterone marker) test results
- 🌡️ Syncs with the company's basal thermometer
- 🤰 Pregnancy mode with week-by-week tracking after a positive test
- 💞 Predad partner sharing of the cycle or pregnancy details you choose
- 💬 Community, virtual consultations and expert articles
Femometer vs Premom: common questions
Femometer's paid plan is listed at $9.99/month, $19.99/quarter or $49.99/year. Premom's is listed at $12.99 to $37.99. Prices change and differ by country; each listing shows where and when we read them.
Femometer says it does not sell personal data. Premom says it does not sell personal data. This is what each company states in its own policy, not an audit.