Brainstorming app for the browser and your pocket

Every notes app captures ideas; that is why they go to notes apps to die. The valuable move is what happens next: the idea gets challenged, mutated, surrounded by alternatives, and either promoted to a plan or honorably retired. A brainstorming app should do that development, not just the capture.

Brainstormer is built for that second half. Type the half-formed thought as the challenge, put what you already know in the context field, and six personas deal challengers around it before the run names a winner. Half-formed is a valid input format here, and the Skeptic is the one who tells you whether the shower thought survives. Keeping those seeds from going stale is its own habit, which is what idea backlog management is about.

On a phone the ideas become a compact two-column deck with thumb-sized chips, grouping by persona stays one tap, and the whole arc works without pinching. The studio on this page is a sample of that experience; try it on whatever device you are holding.

At a desk the same session opens wider, with all six personas side by side and the shortlist and winner underneath. One brainstorm, both postures, and your session history stays in your account rather than on a device. More on online brainstorming.

Every brainstorm you run stays in your account, so the campaign angle you almost used in March is still there in July. Private by default, never used for training, deletable on request. To be straight about the limit: it is session history rather than a searchable idea library, so you reread runs instead of querying across them, and there is nothing shared between accounts.

Get started from $16 per month; Pro at $39 removes the monthly cap so you can run a brainstorm whenever a decision is stuck.