One - Time Tracker

A minimal time tracker that lives on the surface of iOS. Dynamic Island. Lock Screen. One thing at a time.

You can only do one thing at a time. One helps you stay aware of what that is.

Start a timer, name what you're doing, and get back to it. Your timer lives on the Dynamic Island and Lock Screen — always visible, never in the way. You don't need to open the app.

No categories. No tags. No projects. Just your time.

Recent entries appear as one-tap chips, so restarting takes a second. A clean history shows where your days went. Tap any entry to adjust it.

One is for people who tried complex time trackers and abandoned them. It does less, on purpose.

All data stays on your device. No analytics. No accounts.