Kalena is a privacy-first period tracker built around a single rule: your health data never leaves your phone. No account. No analytics. No ads.



+2

Kalena is a privacy-first period tracker built around a single rule: your health data never leaves your phone. No account. No analytics. No ads.




Cycle phase awareness tool for male partners, offering daily battery-style signals, total offline privacy, no account, no AI, requires just two dates and works on iOS and Android.




Cycle tracking supporting every life stage, AES-256 device encryption, EU-only hosting, doctor-ready reports, privacy-first options, and no ads shown.



