Build

Build Check is a free tool designed for "outsiders" and "vibe coders" – individuals who are not necessarily technical but have an app idea and want to determine its viability. It helps users assess their app concepts across six critical dimensions to prevent them from spending weeks building something nobody needs. The tool provides an instant scorecard, a grade, and actionable next steps tailored to the idea's weakest areas. The core functionality involves a 12-question quiz that evaluates the idea based on criteria like problem realness, frequency and pain, target audience, builder fit, demand signals, and personal drive. Beyond the interactive quiz, Build Check also offers a DIY version where users can copy a detailed prompt to use in AI tools like Claude, ChatGPT, or Gemini, replicating the same 6-dimension framework for idea validation. This makes it accessible for those who prefer to use their existing AI platforms.