Compare software

Mensinator vs Euki: catalog facts
Mensinator	Euki
Best for: Tracking periods privately on an Android phone	Best for: People seeking a private period tracker with reproductive health resources
Free Free and open source under the MIT licence.	Free Free to use with no paywalls, supported by donations.
Android	Android, iOS
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	Period and pregnancy tracking Available in English and Spanish All 3 strengths for Euki Period and pregnancy tracking Available in English and Spanish No paywalls or third-party tracking
Android only No tagged releases on the repository	Available for Android and iOS
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
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	Official website Full listing and sources Sources for Euki eukiapp.org Catalog checked October 8, 2026

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