The to-do list is the most successful productivity tool ever invented, and also the least productive. Todoist alone has 50M+ users, and the to-do list app category is worth around $1.12 billion and growing ~10% a year. We clearly love writing things down.
We are less keen on doing them. When iDoneThis studied its users, 41% of to-do items were never completed, and only 15% of the things people actually got done had started life on the list. The list is less a plan and more a polite record of good intentions.
The reason is not laziness. It is everything else. Microsoft found the average worker is interrupted every two minutes, 275 times a day, while wading through [117 emails and 153 Teams messages daily](https://news.microsoft.com/de-ch/2025/06/17/new-microsoft-study-reveals-the-rise-of-the-infinite-workday-40-of-employees-check-email-before-6-a-m-evening-meetings-up-16/?). Asana puts 60% of the working week on "work about work": chasing updates, hunting for information, switching apps.
And here is the twist. A huge share of what sits on the average founder's list ("research competitors", "follow up with yesterday's leads", "draft the investor update") is exactly the kind of work AI agents can now do. Yet every to-do app on the market still stops at reminding you. Todoist's own AI push, Todoist Assist, is mostly about getting tasks onto the list faster, from forwarded emails to voice "rambles". Brilliant. More tasks.
ToDone, a mobile and web to-do list where adding a task kicks off the work.
The wedge is deliberately narrow: founders and freelancers whose lists are stuffed with research, writing and admin. The platform underneath, a task layer with context and execution plugged in, expands naturally into teams, where "assign to agent" becomes as normal as "assign to Sarah".
Market size