Niah: Private Period Tracker

Niah is the private period and cycle tracker that keeps your most personal data exactly where it belongs — on your phone. Log your period in a single tap, track symptoms and mood, and get clear, honest predictions for your next period and fertile window. Niah learns your rhythm and handles irregular cycles gracefully — showing a range instead of pretending every cycle is the same. WHY NIAH • Truly private — no account, no cloud, no tracking. Your data never leaves your device. • Works completely offline. • Calm, beautiful design with a cycle ring, calendar, and insights. • Honest predictions, even for irregular cycles. • Encrypted backups you control — export and import your data anytime. TRACK WHAT MATTERS • Period start, end, and flow • Symptoms and mood • Cycle length, period length, and regularity trends • Gentle period reminders PREMIUM A one-time unlock adds fertility & ovulation predictions and advanced cycle insights. PRIVACY Everything you log stays on your device. Niah has no account and makes no network requests. Full privacy policy: https://pixels512.github.io/MoneyMakerApps-legal/niah/privacy.html