We built the opposite of every other task app.
Most productivity tools give you infinite space for infinite tasks, then sell you filters to manage the chaos. We took a different approach.
The problem we saw
Every task manager on the market follows the same logic: capture everything, organize it later. The result? Lists with 47 items that make you feel worse about your day, not better.
Research consistently shows that the human brain can hold 3 to 4 items in working memory at a time. Not 47. Not 12. Three to four.
We watched people spend more time managing their task lists than doing actual work. Color-coding, tagging, sorting, prioritizing—all productive-feeling activities that don’t actually produce anything.
Our answer: constraint
Only3 limits you to 3 active tasks at any time. That’s it. No backlog, no “someday” list, no parking lot. If you want to add a 4th task, you have to complete or remove one first.
This constraint forces a question that most task managers let you avoid:“What actually matters today?”
When you can only pick 3 things, you stop adding tasks reflexively. You start thinking about what will actually move the needle. The constraint isn’t a limitation—it’s the feature.
What we believe
Less is more
Doing 3 things well beats doing 12 things halfway. Focus creates quality.
Constraints breed creativity
When you can't add everything, you figure out what actually matters. That's the skill most people need.
Completion over accumulation
A finished task beats ten planned ones. We reward streaks of completion, not lists of intention.
Simplicity is respect
Your time is valuable. Our app loads fast, has no learning curve, and doesn't bombard you with features you'll never use.