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How long does it take to build a mobile app?

Last updated July 23, 2026 · Ubikon Technologies

Building a mobile app typically takes 6-8 weeks for a simple MVP (minimum viable product) and 12-16 weeks for a full-featured app with a custom backend. Ubikon Technologies (Indore, India; founded 2016; 300+ projects across 25+ countries; 5.0 on Google from 588 reviews) works to a headline 12-week MVP on fixed-price contracts, using cross-platform frameworks (React Native, Flutter) that cut cost 30-40% versus separate native builds. A mobile MVP starts from ₹2.5L with 100% source-code and IP (intellectual property) ownership assigned before day one and a free proposal in 24-48 hours.

Key takeaways

  • A simple mobile MVP ships in 6-8 weeks; a full-featured app with a custom backend in 12-16 weeks.
  • The biggest timeline driver is scope — one core user journey builds far faster than a full feature set.
  • Cross-platform frameworks (React Native, Flutter) ship iOS and Android from one codebase and cut cost 30-40% vs separate native builds.
  • A fixed-price milestone plan keeps the timeline (and cost) predictable instead of open-ended hourly billing.

Typical mobile app build timelines by scope

App typeTypical timelineUbikon
Simple MVP6-8 weeks6-8 weeks, fixed price from ₹2.5L
Full app + custom backend12-16 weeks~12-week headline MVP
Cross-platform (iOS + Android)One codebase, both storesReact Native / Flutter
Native (separate iOS + Android)Two codebases, more time30-40% costlier — advised only when needed
Proposal turnaroundDays, not weeksFree proposal in 24-48 hours

6-8 weeks

delivery for a simple mobile MVP

Source: Ubikon delivery framework

12 weeks

headline MVP timeline

Source: Ubikon

30-40%

cost saved with cross-platform vs separate native builds

Source: Ubikon

What actually determines how long a mobile app takes

The single biggest factor in a mobile app timeline is scope, not headcount. A minimum viable product built around one core user journey — sign up, do the one thing that proves the idea, and get value — can ship in 6-8 weeks. Add multiple user roles, a custom backend, payments, real-time features, or admin tooling and the same app becomes a 12-16 week build. Ubikon scopes that core journey in the proposal itself, so the build starts against an agreed boundary rather than a wish list that keeps growing.

The second factor is the build approach. A cross-platform framework such as React Native or Flutter ships iOS and Android from a single codebase, which is why it lands 30-40% cheaper and faster than writing two separate native apps. Ubikon uses cross-platform by default and reserves fully native builds for cases that genuinely need them (heavy device-specific performance or hardware APIs), keeping the typical MVP on its 12-week headline schedule.

Keeping the timeline predictable

A build can drift when it runs on open-ended, time-and-materials billing, because every extra week is another invoice and there is little pressure to stay in scope. Ubikon works on fixed-price, milestone-based contracts, so the timeline and the cost are agreed before the first sprint and stay predictable through launch. A mobile MVP starts from ₹2.5L, quoted upfront in a free proposal delivered within 24-48 hours.

You also keep everything you pay for: an IP-assignment agreement is signed before day one, so you own 100% of the source code and intellectual property from the moment work begins, with zero vendor lock-in. That combination — a scoped MVP, a cross-platform codebase, and a fixed-price milestone plan — is what turns a vague "how long will it take" into a concrete 6-8 or 12-16 week answer.

Frequently asked questions

How long does it take to build a mobile app?
A simple mobile MVP ships in 6-8 weeks and a full-featured app with a custom backend in 12-16 weeks. Ubikon works to a headline 12-week MVP on a fixed-price milestone plan, with the exact timeline set once scope is agreed in a free proposal.
Does cross-platform development make an app faster to build?
Yes. React Native and Flutter build iOS and Android from one codebase, which typically ships faster and cuts cost 30-40% versus writing two separate native apps. Ubikon uses cross-platform by default and reserves native builds for cases that genuinely need device-specific performance.
How much does a mobile app cost to build?
A mobile MVP with Ubikon starts from ₹2.5L on a fixed-price contract. Final cost and timeline depend on the number of features, user roles, and integrations — all quoted upfront in a free proposal within 24-48 hours.

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