ThreeDoneYour mind holds only a few things
Research on working memory (Cowan, 2001) shows we can hold roughly three to five items at once. Three tasks fit right in.
For iPhone and Android · in 7 languages
The to-do list app for three tasks a day
Long to-do lists never get finished. With ThreeDone you pick the three things that really matter each day – and finish them. Plan less, get more done.
- Free
- No account needed
- No ads
- Your tasks stay on your phone
Why only three tasks a day?
A to-do list only helps if you actually finish it. ThreeDone is built on three simple insights.
We consistently over-plan
The ‘planning fallacy’ (Buehler et al., 1994) describes how we keep underestimating how long things take. A short list keeps your day from being full before it starts.
Small wins motivate most
Across 12,000+ diary entries, progress in meaningful work was the biggest motivator (Amabile & Kramer). Checking off three feels like winning.
The idea isn’t new: back in 1918, Ivy Lee advised working from a short, fixed list of priorities every day. ThreeDone turns that into a daily habit.
How ThreeDone works
Pick your three
In the morning (or the night before), set your three most important tasks. Big task? Break it into subtasks.
Get them done
Work through your list and check tasks off. Finish three and you’ve had a perfect day – with a small celebration.
Build a streak
Keep your streak going, earn badges and see in your stats how your week is going.
Everything you need, nothing that distracts
ThreeDone is simple by design. No projects, labels or endless lists – just the features that help you finish what matters, every day.
- Three tasks a dayFocus on what really matters today.
- SubtasksBreak big tasks into small steps.
- Voice inputSpeak your tasks, notes and subtasks instead of typing.
- Time and durationPlan when you start a task and how long it takes.
- AgendaPlan tasks ahead for the coming days.
- Daily reminderA calm notification to pick your three tasks.
- Streaks and badgesSee your progress and stay motivated.
- StatisticsCurrent and longest streak, completion rate and weekly overview.
- Themes and languagesPick your colour; the app works in 7 languages, including English, Dutch and German.
Privacy first
Your tasks are stored only on your own phone – we can’t see them. You don’t need an account, and the app has no tracking and no ads.
We don’t sell data. If we add extras later, such as syncing between devices, they’re only switched on if you choose to. Read the full privacy policy.
Frequently asked questions
Is ThreeDone free?
Yes. ThreeDone is free to download and use, with no ads. The core stays free; an optional Plus version with extra features is coming for those who want more.
Do I need an account?
No. Open the app and start right away – no sign-up or login. That won’t change: only future extras, such as syncing between devices, will need an account – and only if you choose to use them.
Is ThreeDone available on Android?
Yes. ThreeDone is available for iPhone (App Store) and Android (Google Play).
Why three tasks and not more?
Three tasks are enough to make real progress and few enough to actually finish. You end your day with a sense of done instead of a half-finished list.
What is the Ivy Lee method?
A simple productivity method from 1918: each day, write a short list of your most important tasks, work through them in order and move the rest to tomorrow. ThreeDone is inspired by that idea.
Where are my tasks stored?
Only locally on your phone. They are never sent to us or anyone else, and they are included in your phone’s regular backup.
Which languages does the app support?
English, Dutch, German, French, Spanish, Italian and Portuguese. The app follows your phone’s language; you can change it in Settings.
Start today with your first three
Download ThreeDone for free and discover how calm a short list feels.