One priority.
One day.
Get it done.

Done with endless task lists? One helps you choose one meaningful thing, finish it, and build a calm focus habit across all your Apple devices.

  • $9.99 once
  • No subscription
  • No account
  • iPhone, iPad, Watch, Mac
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Start Focus

You don't need another list.

Most productivity apps ask you to organize everything. One asks one question: what matters most today? Less managing. More finishing.

Less noise. More done.

One is a focus ritual, not another planner. Set your priority, do the work, and look back without turning your life into a project plan.

One thing that matters

Each day gets a single primary task. No lists, projects, or clutter.

Plan tonight, wake up clear

Set tomorrow before bed. Start the day knowing exactly what to do.

Start focus. Finish today.

Not started, in progress, complete. Calm guided actions keep you moving.

Gentle reminders

Evening planning and morning focus nudges you can tune or turn off.

Today on every screen

Widgets, watch complications, and Mac menu bar keep your task visible.

Your data stays yours

On-device storage, optional iCloud sync, export and delete anytime.

Four steps. Every day.

Simple enough to stick with. Strong enough to change how your days feel.

  1. 01

    Choose

    Pick your one thing for today, or plan tomorrow tonight.

  2. 02

    Focus

    Tap Start Focus when you are ready. One keeps the task front and center.

  3. 03

    Complete

    Mark today done. A quiet win, not a productivity circus.

  4. 04

    Repeat

    History, calendar, and Reflect show your rhythm without guilt.

Everywhere you already are.

iPhone & iPad

Today, History, Calendar, and Reflect with Home Screen and Lock Screen widgets.

Apple Watch

Today on your wrist with guided Start Focus and Complete flows.

Mac

Sidebar app, menu bar quick actions, and a desktop widget at your desk.

Pay once. Focus forever.

One is $9.99 with no subscription, no in-app purchases, and no ads. Buy once and use it on every Apple device signed into the same Apple ID.

One-time purchase

$9.99

No monthly fees. No upsells.

Get One on the App Store

Win the day with one task.

Stop juggling lists. Start finishing what actually matters.

Download One