Private and open-source alternatives to Apple Health Cycle Tracking
5 period trackers rated against the same public privacy criteria as Apple Health Cycle Tracking, with our picks first.
Why look for an alternative?
- Open source: no. Closed source.
- No trackers or telemetry: partial. Device and health analytics are only shared with Apple with consent, but the Apple website sets first-party performance cookies for analytics by default.
- Independent audit: partial. iCloud, which syncs Health data, has yearly ISO 27001 and 27018 certification audits, but only the certificates are public.
- Data stays on device: partial. Data is stored on the device and, when iCloud is on, synced by default with end-to-end encryption that Apple cannot read, which requires two-factor authentication.
- No account needed: partial. An Apple Account is optional and only needed for iCloud sync.
See the full Apple Health Cycle Tracking rating.
The alternatives
drip. Grade B
Open source menstrual cycle tracker for Android and iOS that supports the symptothermal method and keeps all data on the device.
Based in Germany (Fourteen Eyes). drip. scores 87 out of 100 (grade B) on the period trackers criteria.
Mensinator Grade B
Open source Android period tracker with custom colour-coded symptoms, cycle and ovulation predictions, and data export, with no sign-up and no network access.
Mensinator scores 87 out of 100 (grade B) on the period trackers criteria. It meets 5 of 6 criteria: open source, no trackers or telemetry, no ads or data sales, data stays on device and no account needed.
Periodical Grade B
Open source Android period calendar that estimates fertile days with the calendar method, with notes, symptoms and local backup.
Periodical scores 77 out of 100 (grade B) on the period trackers criteria. It meets 4 of 6 criteria: open source, no ads or data sales, data stays on device and no account needed.
Euki Grade C
Open source sexual and reproductive health app from a US nonprofit, with period tracking, reminders and health information. Data stays on the device, with an optional PIN.
Based in the United States (Five Eyes). Euki scores 67 out of 100 (grade C) on the period trackers criteria. It meets 4 of 6 criteria: open source, no ads or data sales, data stays on device and no account needed.
Stardust Grade F
Period tracking app with cycle predictions, symptom logging and moon-phase features, funded by subscriptions. Health data is stored against a random account ID, separate from contact details.
Based in the United States (Five Eyes). Stardust scores 7 out of 100 (grade F) on the period trackers criteria. It partly meets no ads or data sales.