SmartFin lets you track finances straight from WhatsApp or Telegram — just text any input and it's logged. Unlike traditional finance apps, it combines multi-currency support (ARS, BRL, COP, MXN, USD) with live exchange rates, AI-powered financial chat insights, natural language input, PDF bank statement parsing, family sharing, and a visual spending heatmap calendar. Built as a PWA for Latin American users juggling multiple currencies daily. Full Spanish/English support included.