Compare software

Bluemoon vs Mensinator: catalog facts
Bluemoon	Mensinator
Best for: People who want a private, simple period tracker on Android	Best for: Tracking periods privately on an Android phone
Free Free and open source.	Free Free and open source under the MIT licence.
Android	Android
Data stays on the device Simple interface All 3 strengths for Bluemoon Data stays on the device Simple interface Available on F-Droid and Google Play	Customisable, colour-coded symptoms Cycle prediction from average period and luteal phase length All 4 strengths for Mensinator Customisable, colour-coded symptoms Cycle prediction from average period and luteal phase length Period and ovulation statistics Does not track user data
Android only Focused on basic tracking rather than detailed health insights	Android only No tagged releases on the repository
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: MIT
No account needed	Not stated if an account is needed
Offline features available	Not stated if it works offline
Official website Full listing and sources Sources for Bluemoon nilsgrob.ch/work/bluemoon Catalog checked October 2, 2026	Official website Full listing and sources Sources for Mensinator github.com/EmmaTellblom/Mensinator f-droid.org/packages/com.mensinator.app Catalog checked October 2, 2026

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