How Much Does It Cost to Build an App in 2026?

A cross-platform MVP app built with Flutter or React Native — one codebase running on both iOS and Android — typically costs $6,000 to $20,000 and launches in 4 to 8 weeks. A full-featured app with payments, push notifications, user profiles, and a backend runs $20,000 to $60,000. Apps with complex real-time features like video calling or marketplaces scale from there.

For most startups, cross-platform development with Flutter or React Native is the smart choice. You get one codebase, one team, and a launch on both stores at roughly half the cost of building two native apps. Native development is only worth the premium when an app needs deep hardware integration or peak graphics performance.

Cost is driven by the number of screens and user flows, backend complexity, third-party integrations, and compliance needs. A cleanly designed app with standard flows is dramatically cheaper than one with custom animations, real-time syncing, or payment compliance requirements.

The fastest reliable path is an MVP: define the one core user journey, build it in Flutter, test on real devices, and publish. Launching a focused MVP in 4–6 weeks gets your product in users' hands while most competitors are still writing requirements documents. You can then fund feature expansion from real traction.