The One Thing app icon

The One Thing

A minimal iOS app that helps you define your single most important task each day — and actually do it.

Download on the App Store
History view showing past tasks History
Today view with your one task Today
Focus timer screen Focus
Why The One Thing

Designed to keep you focused

🎯

One task at a time

Define the single most important thing to accomplish today. Everything else is a distraction.

⏱

Built-in focus timer

Lock in with a dedicated work session. Know when to start and when to stop.

📈

Track your streak

Review your history and build the daily habit of completing what actually matters.

🔒

100% private

Everything stays on your device. No accounts, no tracking, no cloud — just your focus.

⚡

No clutter

A task manager shouldn't overwhelm you. The One Thing stays minimal by design.

🍎

Native iOS

Built with SwiftUI for iPhone and iPad. Fast, fluid, and feels at home on Apple hardware.

🔒

The One Thing collects zero data. Everything you do stays on your device, always. Read the full Privacy Policy or Terms of Service.