Mobile App Development

For most products, cross-platform with React Native or Flutter delivers 90% of native performance at 50-60% of the cost. We recommend native development only when your app requires heavy use of platform-specific APIs like ARKit, custom camera pipelines, or complex Bluetooth integrations. We evaluate your specific feature requirements during discovery and give you an honest recommendation.

We design and develop with responsive layouts that adapt to every screen size, from iPhone SE to iPad Pro to Android tablets. Our testing pipeline runs on real devices across multiple OS versions, not just simulators. We use platform-specific design tokens so typography, spacing, and touch targets feel appropriate on each device class.

Rejections are uncommon with our process because we address the most frequent rejection reasons (privacy declarations, performance issues, and guideline compliance) during development. If a rejection does occur, we handle the appeal or code changes directly and resubmit. Our experience with the review process means we typically resolve rejections within a few days.

Yes. If you have an existing API, we build the mobile app to consume it directly. We will audit your API for mobile-readiness (response sizes, pagination, authentication flow, and real-time capabilities) and recommend targeted improvements where needed. If your backend needs significant changes, we can handle those in parallel with app development.

We set up over-the-air update capabilities for JavaScript bundle changes, which lets us push bug fixes and minor updates without going through the store review process. For native changes, our CI/CD pipeline automates the build, signing, and submission process so new versions can be submitted within hours of merging code.

We implement push notifications through Firebase Cloud Messaging for Android and APNs for iOS, with a unified backend service that handles token management, delivery tracking, and rich notification formatting. Real-time features use WebSocket connections with automatic reconnection and offline queuing so users never miss an update.

A focused MVP with core features, authentication, and basic backend integration ranges €50,000–€100,000. A production-grade v1 with subscriptions, push notifications, offline mode, and a backend platform runs €120,000–€250,000. Apps with heavy native features (Bluetooth, AR, video processing, complex location services) extend further depending on scope. We provide fixed quotes per phase after a paid discovery sprint that defines exactly what gets built and when.

A cross-platform MVP typically takes 10–14 weeks from kickoff to App Store submission. A production-grade v1 with full feature scope runs 16–22 weeks. The bottleneck is rarely development. It is decisions: which features ship in v1, what the backend looks like, how subscriptions and accounts work. We compress this by running a structured discovery sprint in the first two weeks before any production code is written.

A PWA is a website that behaves like an app (installable, offline-capable, push-notification-enabled) but distributed through a browser, not the App Store. A native or cross-platform mobile app is distributed through the App Store and Google Play, gets access to deep platform APIs like HealthKit, secure enclave, ARKit, and in-app purchase, and benefits from the trust and discoverability of being in the stores. Choose PWA for low-friction acquisition and content-heavy products. Choose mobile app when you need platform APIs, subscription billing, or App Store as a distribution channel.

React Native fits products that need fast iteration, share logic with an existing React web app, and rely on JavaScript hires. Flutter fits products with custom design systems and ambitious UI where matching pixel-perfect designs across platforms is a priority. Native Swift and Kotlin fit products with heavy use of platform-specific APIs (ARKit, deep camera integration, complex BLE) or teams that are already native-first. For most B2B and consumer SaaS apps, cross-platform delivers 90% of native performance at 50–60% of the cost.

For most B2B products, iOS first or simultaneous cross-platform launch is the right call: iOS users skew higher-income and convert better to paid plans. For consumer products targeting global markets, Android-first or simultaneous launch makes sense because of Android's reach in Europe, Latin America, and Asia. Cross-platform frameworks have made 'one codebase, two stores' the default for almost every project today. Building two separate native codebases is rarely justified anymore.

Start with a responsive web app when the workflow is content-heavy, when users discover you through search or links, when the product runs largely on desktop, or when you are still validating product-market fit. Build a mobile app when notifications drive engagement, when offline use matters, when you need device APIs like camera, sensors, or biometrics, when subscription billing matters because App Store payment infrastructure converts well, or when 'open the app' is the daily ritual you are designing for.