The One Thing app icon

The One Thing · iPhone · iPad

Decide what matters. Then do it.

Most to-do lists grow until they stop meaning anything. The One Thing asks you to choose one priority for today, give it a time, and focus until it’s done.

Free · Optional Pro subscription

History view with stats and a list of completed days
The One Thing Today view with three time-blocked priorities, a seven-day streak and a Start Focus button
Focus timer set to 25 minutes for the priority “Review client feedback on mobile nav”

Priorities

One thing. Three at most.

Write down the one thing that would make today a success, or up to three priorities, if the day really needs them. A short list you can finish beats a long one you can’t.

The One Thing Today view with three time-blocked priorities, a seven-day streak and a Start Focus button

Time blocks

Give it a time.

Place each priority in the morning, afternoon or evening, or set your own start and end. Calendar integration helps it fit around the rest of your day.

  • MorningFinish homepage hero section
  • AfternoonReview client feedback
  • EveningPrep workshop slides

Focus

Then stay with it.

Start a focus timer for any priority. The countdown runs on your Lock Screen and in the Dynamic Island, with pause and finish controls right there. Stray thoughts go into a distraction dump instead of your head.

Focus timer set to 25 minutes for the priority “Review client feedback on mobile nav”

Momentum

Watch the habit form.

Mark priorities done, keep your streak, and look back over your history. The weekly view lets you move priorities between days and roll unfinished ones forward.

History view with stats and a list of completed days

The details

Calm by design.

Weekly planning
See the whole week, move priorities between days, or push one to tomorrow.
Rollover
Bring yesterday’s unfinished priorities with you, deliberately.
Home Screen widgets
Your streak and today’s checklist, at a glance.
Gentle notifications
A morning nudge, time-block reminders and an evening review.
Seven languages
English, Norwegian, Swedish, Danish, Dutch, French and Spanish.
iPhone and iPad
Native on both, with a tab bar layout on iPad.

Pricing

Free for the essentials.

Free

Everything you need to plan a focused day.

  • Up to 3 priorities a day
  • 7 days of history
  • Time blocks, focus timer and streaks

Pro

Monthly or yearly subscription. The yearly plan starts with a 7-day free trial.

  • Unlimited priorities a day
  • Unlimited history
  • Weekly summaries
  • Focus minutes in the medium widget

Privacy

Your day stays on your device.

Your priorities, notes and settings are stored locally on your iPhone or iPad and are never sent to our servers. There’s no account. Anonymous usage analytics help improve the app. They are never linked to you or used for advertising.

The One Thing for iPhone and iPad.

Free to download, with an optional Pro subscription.