Building a Fintech App in 2025: The Stack I’d Choose (and Why)
Everyone has a “perfect” fintech stack on paper. Very few survive contact with real users, real money, and real regulations. After working with modern frontends, Spring Boot backends, crypto payments, and fiat gateways, here’s the stack I’d actually choose in 2025 if I were building a fintech product from scratch—and more importantly, why . This isn’t a hype list. It’s a “what won’t blow up at 2am” list. Frontend: React (Yes, Still) I like Flutter. I really do. But for fintech in 2025 , I’d still pick React for the web. Why React wins here: Massive ecosystem (charts, tables, auth, forms) Battle-tested UI libraries Hiring is easier Debugging production issues is faster Works beautifully with complex dashboards Fintech apps live and die by: Data density Tables, graphs, filters Admin panels Edge-case UX React handles this without friction. What I’d use React + TypeScript Vite (fast builds, fewer headaches) Tailwind or a solid component l...
