Type "best app builder for small business" into any search engine in 2026 and the results are roll-up lists. Ten tools, a star rating, a price, a sentence about who they're for. The lists are useful for the first ten minutes — they name the candidates. They are close to useless for the decision itself, because the criteria they rank on are almost never the criteria that matter to a particular small business. A coffee shop and a roofing contractor and a bookkeeper have different answers to what "good" looks like in an app builder, and the ranked list flattens all of that. This article is about the criteria — the actual things that separate a good app-builder choice from a bad one for a small business in 2026. It is deliberately not a ranking. Rankings are easy to produce and hard to use. A criteria framework is harder to produce and far easier to apply to your specific situation, because the moment you know what you're weighing, the comparison becomes straightforward. TL;DR-Key Takeaways The U.S.…