Nidela

Your cycle. Your phone. That's it. Nidela is a period tracker built so we couldn't see your data if we tried. Everything you log stays on your device: encrypted, local, and under your control. No account. No tracking. No ads. No cloud server holding your history. Private by architecture, not by promise • All data stored locally on your device • Predictions run on your phone using simple pattern math • Optional passcode and Face ID lock • Encrypted backup you save wherever you want • One tap delete everything Track what matters • Log flow, symptoms, mood, and notes in a tap or two • See cycle patterns and gentle next period estimates • Share a PDF summary with your doctor or partner — you control what's shared Wellness, not medical advice Nidela helps you see patterns in your own data. It does not diagnose conditions or provide contraceptive guidance. We built Nidela so there's nothing to subpoena, leak, or sell — because we never receive your data in the first place.