Cythr
Free AI-powered cycle tracking app with partner sharing, gamification, and AES-256 encryption.
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About Cythr
Short Description
Cythr is a free, AI-powered cycle tracking app with AES-256 encryption, partner sharing, and gamification โ built for everyone, not just women.
Long Description
Cythr reimagines cycle tracking with a free-forever model. Powered by AI smart logging that lets you describe your day in natural language, partner sync for shared awareness, a gamification system with streaks and badges, and full multilingual support across 8 languages including RTL. Every piece of health data is AES-256 encrypted. No ads, no data selling, no paywalls โ sustained entirely by voluntary donations.
Key Facts
Founder
Timofei Klimov
Solo founder & developer. Built Cythr because every period tracker on the market either charges $60/year for basic features or sells your most intimate data.