The key question here is, are you building a quick and dirty prototype, or are you building an MVP? MVP doesn't mean a garbage prototype. Depending on what you'

The key question here is, are you building a quick and dirty prototype, or are you building an MVP? MVP doesn't mean a garbage prototype. Depending on what you're doing, an MVP could still take significant time to build (and your MVP would take 1 month vs 3 months for the "full product.") IMHO, if you're worried about supporting and maintaining your app, and concerned about your users not having a buggy experience, you should TDD it.