If you can build but can't sell, you get an AI marketing co-founder. If you can sell but can't build, you get a technical one. Both reason from real startup playbooks — pricing, positioning, architecture — not generic chatbot advice.
New app, built for solo founders. iOS and Android.
Most solo founders are strong at exactly one half of the job and stuck on the other. Finding a real co-founder for that half is slow, high-stakes, and usually the wrong call before you know what you're building. So the decisions that need a second opinion — what to charge, what to cut, what to build first — get made alone, late at night, with no one to argue back.
You get matched to one, based on what you already bring to the table.
For technical founders
Positioning, pricing, launch sequencing, and which channel is worth your next two weeks. It pushes back when the plan is really three plans.
"We have 40 signups and no revenue — do I raise the price or fix onboarding first?"
For marketing & sales founders
Architecture calls, build-vs-buy, MVP scoping, and honest estimates of what a feature actually costs before you promise it to a customer.
"A client wants SSO by next month — is that a weekend or a quarter?"
A few sentences about the product, and whether you're the technical or the marketing half.
You're introduced to the co-founder you're missing — by name, with its own voice and opinions.
Pricing, architecture, what to cut. Answers come from real startup frameworks, not filler.
Your question is matched against a set of startup frameworks, and the relevant ones are pulled in before an answer is written for your specific situation.
Both co-founders reason from original frameworks written for early-stage work — pricing models, go-to-market sequencing, architecture trade-offs, and MVP scoping — rather than whatever a general-purpose chatbot happens to recall. It won't always agree with you, and it will tell you when a question needs a human.