Compare software

Clue vs drip: catalog facts
Clue	drip
Best for: People who want to track their menstrual cycle on their phone	Best for: People who want to track their cycle without sharing health data with a company
Free + paid options Free app with a paid subscription for additional features.	Free Free and open source.
Android, iOS	Android, iOS
Cycle predictions and personalised insights Available on both iOS and Android All 3 strengths for Clue Cycle predictions and personalised insights Available on both iOS and Android Science-based approach to content	All data stays on the device Supports the symptothermal method for fertility awareness All 4 strengths for drip All data stays on the device Supports the symptothermal method for fertility awareness Transparent about how predictions are calculated APK available outside Google Play
Some features require a subscription Sensitive health data is handled by a commercial service	No sync between devices Fertility features depend on careful manual tracking
Downloadable app	Downloadable app
Not open source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Offline features available
Official website Full listing and sources Sources for Clue helloclue.com play.google.com/store/apps/details apps.apple.com/us/app/clue-period-cycle-tracker/id657189652 Catalog checked September 23, 2026	Official website Full listing and sources Sources for drip dripapp.org f-droid.org/packages/com.drip apps.apple.com/us/app/drip-period-cycle-tracker/id1584564949 Catalog checked September 23, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.