What’s the Best and Most Cost-Effective Database for a Cross-Platform Mobile App With a Web Backend?
18:58 12 Dec 2025

Question:

I’m building a cross-platform mobile application (Android + iOS) along with a web backend for managing the system. I need advice on choosing the best database solution in terms of performance, scalability, and monthly cost.

The project will eventually support around 10,000 users, with real-time updates for bookings and user accounts.

The app allows users to browse nearby sports fields, check availability, and book playgrounds in real time through a mobile app and web dashboard.

I’m considering several options:

  • Supabase (PostgreSQL + Auth + Storage)

  • Firebase

  • Traditional backend using Node.js + MySQL on a VPS

  • Any other recommended setup

Which database (and architecture) would you recommend for this kind of app, especially when cost efficiency and long-term scalability are important?

Would appreciate insights from developers who have handled similar projects.

ios flutter