How much does a mobile app cost? Cost items, timeline and fixed costs
Published: 20.08.2025 · Updated: 07.10.2026
The cost of having a mobile app built is set by the number of screens and features, whether the app needs a backend and an admin panel, whether iOS and Android share one codebase or get separate ones, and the maintenance after launch.

Rough effort by type of app
- Simple app (a few screens, no backend or a ready-made service): 15–30 working days.
- Medium app (accounts, notifications, admin panel, own backend): 40–90 working days.
- Complex app (payments, real-time chat, several user roles, maps): from 90 working days.
These ranges are rough estimates for one experienced expert or a small team. Experts working with AI agents can shorten draft code and test writing; architecture, security and delivery review stay with the expert.
Flutter or native?
Frameworks like Flutter build iOS and Android apps from one codebase, which saves time and money for most business apps. Separate native development may suit special cases that need the camera, sensors or high performance. Ask the expert for a reasoned recommendation for your project.
Easy-to-miss items
Backend and admin panel: accounts, data storage, notifications and content management need a server (API) and a panel. Ask to see them as a separate line in the proposal.
Store accounts: the Apple App Store requires a yearly developer membership and Google Play a one-time registration fee. Having the accounts in your name matters in the long run.
Maintenance: iOS and Android release new versions every year; budget for keeping the app current, updating libraries and fixing small bugs.
Sensible ways to lower the budget
- Start with a minimum viable product (MVP): a first version that does one main job well, then grow it with user feedback.
- Approve the screens before coding: a clickable prototype prevents the most expensive mistake, building the wrong thing.
- Split into stages and pay per stage: you pay as you test and approve each stage.
Frequently asked
Is turning my website into an app cheaper?
Reusing your site's content and backend can shorten the work. Decide upfront which features will really add value in an app (notifications, offline use).
Will I own the source code?
That depends on your agreement; state in writing that the source code, store accounts and server access will be handed over to you.
How long until it is live?
On top of development, store reviews can take a few days; plan the first release with a buffer.
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