From idea to a testable prototype.
Solo.
Research, competitors, personas, requirements, and a clickable prototype — one connected workspace, one person. PRD snapshot on demand.

Calibrate the idea before generating
Step one isn't generation — it's calibration. ArcPM restates what it thinks you're building, asks only the one or two questions that matter, marks its assumptions and gaps, then lets you confirm the direction.
Research findings — market and willingness to pay aren't validated yet
Target users · scenario · budget — noted, never blocking
App — frequent use, needs push reach
Doing the whole PM job alone.
The research, the specs, the prototype — all you. Most of it never gets done, or never gets done well.
How it works
Research, done for you
Cited market, competitors, and personas — not a blank page to fight.
Everything connected
Change one thing later and watch it ripple downstream — that’s Change Radar.
In your voice
Your Twin learns your taste and makes every draft yours.
Built for builders
For indie hackers, solo founders, and PMs incubating something new — anyone who has to be the whole product team.
Be a one-person product team.
Turn your next idea into a plan you can build — in one sitting.
Join the beta