John
John edits the BizAI library of business idea guides and the free calculators that go with them. The library is written for first-time founders in the US who want to test a small, concrete offer before they spend real money.
What every guide must have
- A specific customer and a first offer that customer can buy.
- An example startup budget, with what it assumes and what it leaves out.
- Unit economics you can change in a calculator: price, direct cost, hours and fixed costs.
- A first-customer plan and a small test to run before spending more.
- Public sources beside the factual checks they support.
What the guides do not claim
The budgets, prices and sales volumes are illustrative planning scenarios, not supplier quotes, market averages or income results. The guides are AI-assisted and are not reviewed by a licensed professional. No interviews, customer results or case studies are claimed. Read the full sources and methodology.
Free calculators
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