How much does a mobile app cost in 2026?

• A first version to test an idea (3 to 5 screens, sign-in, database): from €3,900 excl. VAT, in about two weeks.
• An app ready to launch (6 to 10 screens, payments or subscriptions, notifications, publication on the stores): from €7,900 excl. VAT, in 3 to 4 weeks.
• A custom app for your business (design, back end, payments, notifications, analytics): from €20,000 excl. VAT, in 2 to 6 months.
• The rebuild or migration of an existing app: from €15,000 excl. VAT.
• The rescue of an app built with an AI tool: from €2,900 excl. VAT.
• App Store and Google Play publishing for an app already built: €990 excl. VAT, fixed price.
• Adding an AI feature (assistant, chatbot, image recognition): from €4,000 excl. VAT.

These prices exclude VAT. Each project gets a written quote within 48 hours, with a fixed scope and price.

• The number of screens and flows: a 5-screen app and a 40-screen app do not cost the same. This is the first factor.
• Accounts and data: sign-in, profiles, sync across devices, offline mode.
• Payments: a subscription or an in-app purchase needs integration and testing on both stores.
• The back end: a ready-made service is enough to start. A custom API costs more but fits your business.
• Connections to your tools: point of sale, stock, CRM, booking system.
• Design: starting from finished mockups, or creating them.

One choice lowers the bill a lot: a single codebase for iOS and Android. We build in React Native, so you do not pay for two apps. Native code, in Swift and Kotlin, remains useful for specific needs, and we do that too.

AI writes code faster. Our own agents handle project setup, testing, builds and store submission, and the time saved shows in the quote. What does not change is the work of an experienced developer: deciding what to build, designing the architecture, reviewing what AI produces.

• Apple developer account: 99 dollars a year.
• Google Play developer account: 25 dollars, once.
• Commission on digital sales in the app (subscriptions, in-app purchases): from 15% to 30% depending on the store, your revenue and the type of sale. Both stores have a 15% program for publishers earning less than one million dollars a year.

Sales of physical goods and services are not subject to this commission.

An app is not finished the day it ships. Every year iOS and Android release a new version, the stores add rules, and the tools the app relies on move on. The stores end up setting aside the apps that no longer keep up: Google Play requires targeting a recent version of Android to publish an update, and Apple may remove abandoned apps.

Two costs to plan for. Back-end hosting, often free at the start and then a few tens of euros a month. And app maintenance: from €490 excl. VAT per month, with updates for each new version of iOS and Android, crash fixes, store compliance and about one day a month of small improvements.

A free 30-minute call is enough to scope the project: your users, the screens that matter, your deadline. You then get a written quote within 48 hours, with what is included and what is not. Tell us about your project.