Build Check is a specialized tool designed to help non-technical founders, domain experts, and "vibe coders" evaluate the viability of their app ideas. Developed by Ger Merlo, the platform provides a structured, 12-question, 2-minute quiz that assesses the potential of a project across six fundamental dimensions. Rather than relying on gut feelings, this framework offers a pragmatic way to determine if an idea warrants the time and effort required for development, helping creators avoid common pitfalls in the early stages of product creation.

Some of the key features are:

• Six-Dimension Framework: Evaluates ideas based on Real Problem, Frequency & Pain, Target Audience, Builder Fit, Demand Signals, and Personal Drive.
• Objective Grading System: Provides a letter grade (A–F) based on the input, offering a clear signal on whether an idea is ready for development.
• AI-Powered Insights: Generates a customized report including a competitor benchmark, domain name suggestions, an Ideal Customer Profile (ICP) snapshot, and a 48-hour validation experiment.
• Low-Barrier Access: Completely free to use with no hidden fees, signups, or paywalls, making it accessible to any aspiring founder.
• Integratable Format: Allows users to embed the quiz directly into their own websites, landing pages, or no-code platforms to test ideas with their own audiences.

The tool operates by processing the user's answers through a tailored validation framework that focuses on finding "painkillers" rather than "vitamins." By analyzing the specific, daily challenges that a user faces in their own industry, Build Check helps distill vague concepts into testable hypotheses. The output acts as a filter, guiding users to perform small, 48-hour experiments to verify market demand before they commit to coding or hiring developers. This approach prioritizes real-world validation over extensive business planning, specifically benefiting individuals who have deep domain knowledge but may lack traditional technical experience.

Some common use cases include:

• Idea Vetting: Assessing whether a recurring work frustration is a genuine market opportunity worth building a product around.
• Validation Planning: Identifying the weakest aspect of a business concept and receiving a concrete, 48-hour experiment to test that specific risk.
• Founder Strategy: Helping non-technical professionals, such as teachers or lawyers, leverage their industry expertise to identify viable niche software projects.
• Pre-Launch Research: Performing a rapid competitive analysis and defining an ideal customer profile before investing time in building a Minimum Viable Product (MVP).