SafeCycle: Period Tracker

SafeCycle is the period tracker for people who refuse to trade their privacy for predictions — and refuse to rent an app forever.

Everything stays on your iPhone, encrypted with AES-256-GCM. Zero-knowledge: no account, no server, no cloud. We cannot read your data. We cannot sell it. Nobody can.

NO SUBSCRIPTION — EVER
• SafeCycle is free to use
• One optional one-time purchase unlocks everything, for life
• Less than one year of a typical tracker subscription — yours forever

PRIVACY BY ARCHITECTURE
• AES-256-GCM encryption, keys stored in the Apple Keychain
• No account, no server, no tracking, no ads
• Export or erase your data anytime — it is yours

BUILT FOR REAL BODIES
• Simple mode: period dates and flow, nothing more
• Advanced mode: symptoms, mood, medications, free notes
• Support for irregular cycles, PCOS, endometriosis, contraception
• Partner mode: shared predictions without raw data

INTELLIGENCE THAT STAYS HOME
• Cycle and ovulation predictions computed on your device
• Optional narrative insights — anonymized, aggregates only
• Local reminders, never external push notifications

MEDICALLY GROUNDED
• Health content cites recognized sources: ACOG, NHS, WHO, Mayo Clinic
• Predictions are informational, not a contraceptive method

CRAFTED FOR iOS
• Liquid Glass interface designed for iOS 26
• Dark mode, Dynamic Type, full accessibility
• Available in 7 languages

Your cycle. Your data. Your rules. Download SafeCycle and own your tracker — once.