Most finance apps throw numbers at you and assume you already understand them. Nerio Fin is built backwards: it explains every concept in plain English and shows the source behind every number, so you actually understand your money instead of just staring at it. Free to start. Pro ($9/mo) adds Fin Concierge, an AI assistant that answers your money questions in context. Built solo, with care — editorial design, no jargon, no dark patterns.