Choosing a development company is mostly a due-diligence problem, not a technical one. This article covers what to ask before you sign, what a serious proposal contains, how to make sure you end up owning what you paid for, and the warning signs that a project is heading for trouble....

You have asked three companies what a mobile app costs and got three versions of “it depends”. That is frustrating, but it is not evasion — it is what happens when the same two-word request (“a booking app”) can mean four weeks of work or nine months of it....