Ondo.
The rhythm of your habits.
A minimalist habit tracker for iPhone. Build habits, stay fit, and let Apple Health auto-complete the rest. Free, easy to use, no in-app purchases.
Download on the App Store- On-device onlyNo accounts, no servers, no telemetry. Your habits live on your iPhone.
- Auto-complete from Apple HealthRun, lift, walk — Ondo. checks the box for you. It only reads from Apple Health, never writes.
- Three kinds of habitsBinary, counter, or metric. Daily, weekly with specific days, or weekly with a count.
- Quiet by designNo streaks-as-pressure. No confetti. No badges. Calm, monochrome, built for reading at a glance.
Privacy
Ondo. is built on a single principle: your habits are yours. We don't want your data, we don't have servers, and we have nothing to lose if your phone is offline forever.
What we collect
Nothing. There is no account system. There is no telemetry. There is no analytics SDK. We do not know who installed Ondo., when you opened it, or what you tracked.
What stays on your device
The habits you create. Every completion you log, including those auto-detected from Apple Health. Your name (used only for greetings) and your settings.
All of this is stored locally in iOS's standard SwiftData store inside the app's sandbox. iOS includes this data in your standard iCloud Backup if you have one — that's an Apple service, not ours; we never see it.
Apple Health
If you grant access, Ondo. reads the metric and workout data types you've selected (e.g., step count, body mass, workouts) so the app can auto-complete habits you've linked to those sources.
We never write to Apple Health.
You can revoke access at any time in iOS Settings → Health → Data Access & Devices → Ondo.
Notifications
Reminders are scheduled by iOS using UNUserNotificationCenter. The schedule is computed locally on your device. We never send push notifications from a server.
What happens if you delete the app
Your data is gone. We can't recover it because we never had a copy.
Children
Ondo. doesn't request, store, or transmit personal data, so it complies with COPPA by virtue of collecting nothing. The app is rated 4+ on the App Store.
Changes to this policy
If this policy ever changes meaningfully, the "Last updated" date at the top will change. Since we don't track you, we can't notify you — please re-read it occasionally.