A different kind of to-do app
Stop juggling tasks. Start finishing them. One Thing forces radical focus by limiting you to exactly one task at a time.
Download for iOS$4.99 · One-time purchase · No subscriptions
"When you have 20 things to do, your brain often chooses to do nothing."
One Thing eliminates decision fatigue by removing the choice entirely. No backlog. No "later" pile. No prioritization anxiety. Just your One Thing, right now.
Simple by design
Type your most important task. The one thing that matters most right now.
Work on your task with total clarity. No distractions, no other items competing for attention.
Tap "Done" and feel the satisfaction. Then choose your next One Thing.
Designed for focus
See your task and mark it done without opening the app. Your focus, always visible.
Your One Thing follows you everywhere. A constant, gentle reminder of what matters.
Look back at your completed tasks. See your focus rate and celebrate your wins.
Subtle haptics and animations reward you for finishing. Small wins build momentum.
Sometimes tasks become irrelevant. Life changes. Priorities shift. That's okay.
Hold the task for 3 seconds to reveal the "Let Go" option. Release it mindfully.
A 60-second cooldown prevents impulsive task-switching, protecting you from the urge to abandon hard things too quickly.
The constraint is the feature.
Download for iOS$4.99 · One-time purchase