Cycle & Health
What are the best period tracking apps?
HerFound lists 17 period tracking apps: HealCycle, Natural Cycles, Flo, Spot On, Read Your Body, Proov, Premom, Mira, Kindara, Inito, Glow, Femometer, Euki, drip, Cycles, Stardust and Clue. 10 of 17 have a free version (HealCycle, Flo, Proov, Premom, Mira, Kindara, Glow, Euki, Stardust and Clue). Read Your Body, Premom, Mira, Femometer, Euki, drip, Stardust and Clue say outright that they do not sell personal data. Each fact below comes from the app's own pages, last checked Nov 14, 2026.
Updated . We don't rank by rating or popularity and we don't publish ratings; sponsored listings are labelled.
Period Tracking Apps compared
- HealCycle
- Free version
- Yes
- Paid plan
- —
- Sells your data?
- —
- Data used for ads?
- No
- Account
- —
- Data kept
- Company servers
- Platforms
- iOS, Android
- Natural Cycles
- Free version
- No
- Paid plan
- $21.99/month or $149.00/year
- Sells your data?
- Not for money
- Data used for ads?
- Yes
- Account
- —
- Data kept
- Company servers
- Platforms
- iOS, Android
- Flo
- Free version
- Yes
- Paid plan
- $1.99 to $59.99
- Sells your data?
- Not for money
- Data used for ads?
- Yes
- Account
- Optional
- Data kept
- Anonymous option
- Platforms
- iOS, Android
- Spot On
- Free version
- —
- Paid plan
- —
- Sells your data?
- Not for money
- Data used for ads?
- Yes
- Account
- —
- Data kept
- —
- Platforms
- iOS, Android
- Read Your Body
- Free version
- Trial only
- Paid plan
- $2.69/month or $20.99/year
- Sells your data?
- No
- Data used for ads?
- —
- Account
- Optional
- Data kept
- Device option
- Platforms
- iOS, Android
- Proov
- Free version
- Yes
- Paid plan
- $99.99
- Sells your data?
- —
- Data used for ads?
- Yes
- Account
- —
- Data kept
- Company servers
- Platforms
- iOS, Android
- Premom
- Free version
- Yes
- Paid plan
- $12.99 to $37.99
- Sells your data?
- No
- Data used for ads?
- —
- Account
- —
- Data kept
- Company servers
- Platforms
- iOS, Android
- Mira
- Free version
- Yes
- Paid plan
- —
- Sells your data?
- No
- Data used for ads?
- Yes
- Account
- —
- Data kept
- Company servers
- Platforms
- iOS, Android
- Kindara
- Free version
- Yes
- Paid plan
- $4.99/month or $49.99/year
- Sells your data?
- May sell
- Data used for ads?
- —
- Account
- —
- Data kept
- Company servers
- Platforms
- iOS, Android, Web
- Inito
- Free version
- —
- Paid plan
- $119
- Sells your data?
- Not for money
- Data used for ads?
- Yes
- Account
- Required
- Data kept
- —
- Platforms
- iOS, Android
- Glow
- Free version
- Yes
- Paid plan
- $59.99/year, $29.99 every 3 months or $99.99 lifetime
- Sells your data?
- Not for money
- Data used for ads?
- Yes
- Account
- —
- Data kept
- Device option
- Platforms
- iOS, Android
- Femometer
- Free version
- —
- Paid plan
- $9.99/month, $19.99/quarter or $49.99/year
- Sells your data?
- No
- Data used for ads?
- Yes
- Account
- —
- Data kept
- —
- Platforms
- iOS, Android
- Euki
- Free version
- Yes
- Paid plan
- —
- Sells your data?
- No
- Data used for ads?
- No
- Account
- Not needed
- Data kept
- On your device
- Platforms
- iOS, Android
- drip
- Free version
- —
- Paid plan
- —
- Sells your data?
- No
- Data used for ads?
- No
- Account
- —
- Data kept
- On your device
- Platforms
- iOS, Android
- Cycles
- Free version
- —
- Paid plan
- $2.99 to $59.99
- Sells your data?
- —
- Data used for ads?
- Yes
- Account
- Optional
- Data kept
- Device option
- Platforms
- iOS
- Stardust
- Free version
- Yes
- Paid plan
- $6.99/month, or $24.99 to $39.99/year
- Sells your data?
- No
- Data used for ads?
- Yes
- Account
- —
- Data kept
- Company servers
- Platforms
- iOS, Android
- Clue
- Free version
- Yes
- Paid plan
- $9.99/month or $39.99/year
- Sells your data?
- No
- Data used for ads?
- Yes
- Account
- Required
- Data kept
- Company servers
- Platforms
- iOS, Android
| App | Free version | Paid plan | Sells your data? | Data used for ads? | Account | Data kept | Platforms |
|---|---|---|---|---|---|---|---|
| HealCycle | Yes | — | — | No | — | Company servers | iOS, Android |
| Natural Cycles | No | $21.99/month or $149.00/year | Not for money | Yes | — | Company servers | iOS, Android |
| Flo | Yes | $1.99 to $59.99 | Not for money | Yes | Optional | Anonymous option | iOS, Android |
| Spot On | — | — | Not for money | Yes | — | — | iOS, Android |
| Read Your Body | Trial only | $2.69/month or $20.99/year | No | — | Optional | Device option | iOS, Android |
| Proov | Yes | $99.99 | — | Yes | — | Company servers | iOS, Android |
| Premom | Yes | $12.99 to $37.99 | No | — | — | Company servers | iOS, Android |
| Mira | Yes | — | No | Yes | — | Company servers | iOS, Android |
| Kindara | Yes | $4.99/month or $49.99/year | May sell | — | — | Company servers | iOS, Android, Web |
| Inito | — | $119 | Not for money | Yes | Required | — | iOS, Android |
| Glow | Yes | $59.99/year, $29.99 every 3 months or $99.99 lifetime | Not for money | Yes | — | Device option | iOS, Android |
| Femometer | — | $9.99/month, $19.99/quarter or $49.99/year | No | Yes | — | — | iOS, Android |
| Euki | Yes | — | No | No | Not needed | On your device | iOS, Android |
| drip | — | — | No | No | — | On your device | iOS, Android |
| Cycles | — | $2.99 to $59.99 | — | Yes | Optional | Device option | iOS |
| Stardust | Yes | $6.99/month, or $24.99 to $39.99/year | No | Yes | — | Company servers | iOS, Android |
| Clue | Yes | $9.99/month or $39.99/year | No | Yes | Required | Company servers | iOS, Android |
Sources: each app's own privacy policy, help pages and US App Store listing. Open an app to read the exact passage 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.
All 17 apps
HealCycle
Editor's pickA PMDD and PMS companion: track your hard days, spot the pattern and get support every phase.
Natural Cycles
Editor's pickA hormone-free birth control app: FDA-cleared and based on your body temperature.
Flo
Editor's pickA period and ovulation tracker: predictions plus personalized health insights.
Spot On
A period and birth control tracker: log your cycle and never miss a dose, from Planned Parenthood Direct.
Read Your Body
A cycle charting app: customisable period tracking and fertility awareness charting.
Proov
A hormone test reader app: scan your Proov test strips and see your hormone levels across the cycle.
Premom
An ovulation and fertility tracker: reads your ovulation test strips and charts your cycle
Mira
A fertility tracker: reads your hormones with the Mira monitor to find your fertile window and confirm ovulation.
Kindara
A fertility charting app: record basal body temperature, cervical mucus and your other cycle signs.
Inito
A fertility monitor and app: measures four hormones at home to find your fertile window and confirm ovulation.
Glow
A fertility and ovulation tracker: period forecasts, partner sharing and community forums
Femometer
A fertility and period tracker: BBT charts, LH test reading and device syncing
Euki
A period tracker: log your cycle and sexual health, with your entries kept on your phone.
drip
An open-source period tracker: log your cycle and practise fertility awareness, with data kept on your phone.
Cycles
A period tracker for iPhone: predict your periods and fertile days and share your cycle phases with a partner.
Stardust
A privacy-first period tracker: cycle predictions, moon phases and sharing with friends or a partner.
Clue
A period tracker: cycle tracking with predictions for your period, PMS and ovulation.
Period Tracking Apps: common questions
HealCycle, Flo, Proov, Premom, Mira, Kindara, Glow, Euki, Stardust and Clue have a free version. Natural Cycles and Read Your Body need a paid plan beyond any free trial.
Read Your Body, Premom, Mira, Femometer, Euki, drip, Stardust and Clue say they do not sell personal data. Natural Cycles, Flo, Spot On, Inito and Glow say they do not sell it for money; see each listing for what the policy adds about advertising. Kindara says it may sell personal data. This is what each company states in its own policy, not an audit.
Flo, Read Your Body, Euki and Cycles can be used without creating an account, according to their own pages.
HealCycle, Natural Cycles, Flo, Spot On, Read Your Body, Proov, Premom, Mira, Kindara, Inito, Glow, Femometer, Euki, drip, Stardust and Clue are on Android. Cycles is not.