A 2-minute test for any young builder's idea. Free, nothing to sign up for.
Real builders think in one order: person first, problem second, product third. Most kids start with the product, which is why the idea goes nowhere. This checks the order.
1. Who is it for — one real person?
Not "teenagers" or "gamers." A name and an age. "My sister Aisha, 16."
2. What painful thing do they do — and how do you know it's painful?
The tell of a real problem is a bad workaround already in use: a sticky note, a janky spreadsheet, a group chat doing a job no app does.
3. Can you hand the first version to that exact person soon?
4. How often does the pain happen?
5. Can the dumbest version ship in four weekends?
Red flags that make it a "version 3," not a v1: login, user accounts, a database, a dashboard, "AI-powered." Strip those.