Prototype From a Spec
Describe the feature and get a working screen in minutes — validate before you involve engineering.
Turn a product idea into a working, clickable app — then orchestrate agents to research, build, and track the work.
Describe the feature and get a working screen in minutes — validate before you involve engineering.
Real apps with databases, auth, and payments — so your prototype actually works.
Agents run web and competitor research to pressure-test ideas and inform your roadmap.
Assign work to multiple agents and track progress from one dashboard instead of babysitting sessions.
Change the flow, the copy, the data model — just say what you want and watch it update.
One AI coworker keeps tasks, context, and next steps organized across everything you ship.
| Capability | Unstoppable | ChatGPT | Claude Cowork |
|---|---|---|---|
| Switch AI providers for the best cost efficiency | |||
| Have ChatGPT and Claude collaborate on difficult tasks | |||
| Portable data and workflows without vendor lock-in | |||
| Price-competitive third-party models | |||
| Affiliate revenue share | 10% for 1 year | No public rate | No public rate |
| Integrated browser | |||
| Hand off work and get deliverables back | |||
| Connect all your tools | |||
| Cloud and local agents |
Comparison as of September 2026, based on each product’s publicly documented capabilities.
It builds on a real coding harness, so your prototype is a working full-stack app — with data, auth, and payments — not a clickable mockup that falls apart under questions.
Yes. Turn a spec into a working screen in minutes, put it in front of users or stakeholders, and learn before you spend an engineering sprint.
Yes. Assign work to agents, watch what each is doing, and review progress at a high level from one place — with a Chief of Staff keeping it organized.
Agents run web and competitor research on demand to inform your roadmap and de-risk decisions.
Start free with daily AI credits, then pay as you go or subscribe as you scale.
Choose whether to allow marketing tracking and session recordings. Essential features, performance monitoring, and first-party attribution stay on. Privacy policy