Mobile App Development Sopot

Mobile app development starts from €3,000 for an app with 5-8 screens, registration, and push notifications. An average project with online payments, an admin panel, and backend integration is €5,000-€10,000. Complex apps with real-time chat, geolocation, and multiple integrations — from €10,000. All prices include UI/UX design, development for iOS and Android from a single codebase, testing on real devices, and publishing to both stores. We provide a detailed quote after a free consultation.

Both platforms from a single codebase with React Native and Expo. We write one codebase that compiles into native apps for iOS and Android. The result is indistinguishable from a native app — with access to camera, GPS, push notifications, biometrics, Apple Pay, and Google Pay. It saves about 40% of the budget and time compared to separate development for each platform.

Basic app (5-8 screens, no complex backend): 4-6 weeks. Average app with online payments and admin panel: 6-10 weeks. Complex app with real-time features, chat, and multiple integrations: 10-16 weeks. Every project starts with a Figma prototype that you approve before coding begins — so you know exactly what you will get.

We handle the entire process — from creating Apple Developer and Google Play Console accounts, through preparing screenshots and descriptions, to submitting for review and optimizing the listing (ASO). Apple review usually takes 1-3 business days, Google Play — 1-2 days. If you get a rejection, we fix and resubmit free of charge.

Yes, we work iteratively. We start with an MVP (minimum viable product) — the core features needed to launch. After launch, we collect feedback from real users and add new features based on data and priorities. This way you invest gradually and do not risk a large budget on features that may not be needed.

Yes, we have React Native and Expo experience in a product context — from taxi apps and restaurant ordering to fintech and health platforms. Our stack includes React Native + Expo for frontend, Node.js or Firebase for backend, and TypeScript everywhere for fewer bugs and easier maintenance.

Yes, push notifications are a standard feature in every app we build. We use Firebase Cloud Messaging (FCM) for Android and Apple Push Notification Service (APNs) for iOS. You can send notifications to all users, to segments (by city, interests), or to a specific user. You manage them from an admin panel or automatically on certain events — a new order, promotion, or reminder.

Maintenance from €200/mo includes: crash monitoring (Sentry), updates for new iOS and Android versions, bug fixes, minor functionality improvements (up to 8 hours/mo), and maintaining the App Store and Google Play listings. OTA updates via Expo allow small changes to be released without App Store review — in minutes. For larger new features we prepare a separate quote.

Yes, we develop the backend API as well — it is included in the price. We use Node.js with Express or NestJS, or Firebase for simpler projects. The backend includes authentication, databases (PostgreSQL or MongoDB), file storage, and API endpoints for all app features. If you already have a backend or API, we integrate the app with it.

We test on real iPhone and Android devices — not just emulators. The process includes: functional testing of every screen and flow, testing on different screen sizes, offline/online scenarios, push notifications, and payments in a sandbox environment. We release a beta via TestFlight (iOS) and Google Play Internal Testing so you can test before publishing. We also use Sentry for automatic crash monitoring in production.