One Hundo, October 2026
Nothing. One Hundo has no account, no server, no analytics and no ads. It doesn't track you or share anything with anyone.
Your challenges and attempts are stored only on your iPhone. Your iCloud or computer backup includes them, like other apps' data, under your Apple account's own privacy terms.
Daily reminders are scheduled on your iPhone. Nothing is sent from a server.
If you've chosen to share analytics with app developers in the iPhone Settings app, Apple may pass on anonymous crash reports and usage numbers. You can turn this off in Settings, Privacy & Security, Analytics & Improvements.
If this policy changes, this page will say so. Questions? Open an issue on GitHub.