Mobile app development from backend to App Store launch
We build iOS, Android, Flutter, and React Native apps with the backend, admin tools, analytics, store submission, and post-launch support included.
Is this the right mobile app engagement?
- You need a mobile app connected to a backend, admin panel, or existing platform
- You are building an MVP and want iOS and Android without two separate native builds
- You have an existing web product and need a mobile companion app
- You want App Store and Google Play submission handled by the same team that builds the app
- You need help choosing between native iOS/Android, Flutter, and React Native
- You only need static screens or a clickable Figma prototype
- You need a very simple no-code app with no custom backend
- You want only UI design with no development
- You need the lowest possible upfront cost, even if the code will be harder to extend later
Native or cross-platform: we help you choose the right build
Native apps are best for performance, platform-specific UX, and deep device integrations. Cross-platform apps are usually better for MVPs, faster launches, and shared iOS/Android development. In a 30-minute call, we can recommend the right approach based on your product, budget, and launch goals.
Native iOS
Swift and SwiftUI, following Apple's Human Interface Guidelines. Full platform integration when needed: ARKit, CoreML, MapKit, HealthKit, and other iOS APIs. App Store submission handled by us.
- Swift, SwiftUI, UIKit, and the full iOS SDK - modern declarative UI with UIKit interop where legacy code requires it
- ARKit, CoreML, HealthKit, MapKit integrations - platform APIs used correctly, not just bolted on
- iPad and Apple Watch extensions - when the product scope includes the full Apple device ecosystem
- App Store submission and ASO - metadata, screenshots, review guidelines, we handle the submission
Native Android
Kotlin and Jetpack Compose, Material Design 3, deep Google services integration. We test across device profiles and handle the Play Store submission.
- Kotlin, Jetpack Compose, and the full Android SDK - declarative UI, no XML layout files, modern architecture patterns
- Material Design 3 and custom design systems - follows the spec where it fits, extends it where the brand requires
- Firebase, Google Maps, Play Billing integration - platform services connected correctly with proper error handling
- Play Store submission and device matrix testing - tested on real devices across screen sizes, not just emulators
Cross-platform: Flutter and React Native
One codebase for iOS and Android. Good for MVPs, content apps, internal tools, and products where launch speed matters. If the product later needs native performance or deeper platform features, we can plan a gradual native migration.
- Flutter for pixel-perfect UI and complex animations - renders its own widgets, looks identical on every device
- React Native for shared code with web frontend - TypeScript, large ecosystem, JSI for near-native performance
- 70–90% shared codebase between platforms - platform-specific modules added only where native API is required
- Hot reload for rapid iteration - design feedback visible within seconds during development cycles
Native, Flutter, or React Native: what should you choose?
The right choice depends on performance needs, timeline, budget, platform features, and long-term maintenance.
| Option | Best for | Trade-off |
|---|---|---|
| Native iOS / Android | Performance, deep platform APIs, advanced UX, device-specific features | Higher cost and two codebases if you need both platforms |
| Flutter | Fast cross-platform MVPs, consistent UI, animation-heavy products | Some native integrations require extra bridging work |
| React Native | Shared logic with React/web teams, fast iteration, TypeScript projects | Requires discipline around native modules and dependency updates |
| PWA | Internal tools, simple customer portals, low-cost access across devices | Limited native device features and weaker App Store presence |
Mobile MVP or full app: what do you need?
A mobile MVP validates the core use case. A full product scales and retains users.
| Area | Mobile MVP | Full mobile product |
|---|---|---|
| Goal | Validate core use case | Scale and retain users |
| Platforms | Often one platform or cross-platform | iOS + Android with deeper polish |
| Backend | Basic API and auth | Advanced backend, admin, integrations |
| Analytics | Crash reporting and core events | Funnels, retention, A/B tests |
| Timeline | 4–12 weeks | 3–6+ months |
Mobile app types we can build
Focused MVPs, customer apps, internal mobile tools, and mobile companions for existing platforms.
E-commerce apps
Product catalogs, carts, payments, order tracking, push notifications, loyalty programs. Connected to your web store and CRM.
EdTech apps
Adaptive learning, video lessons, progress tracking, quizzes, gamification, offline mode. Cross-platform for maximum reach.
FinTech apps
Banking, trading, wallets, expense tracking, KYC verification, biometric authentication. Built with security, auditability, and compliance requirements in mind.
Health & fitness
Telemedicine, symptom tracking, workout apps, wearable integrations (Apple Watch, Fitbit). Privacy-aware data handling, role-based access, and secure integrations.
On-demand & delivery
Real-time GPS tracking, route optimization, driver/customer matching, push notifications, ratings and reviews.
Enterprise mobile
Field workforce apps, inventory management, CRM companions, approval workflows, document scanning, offline-first architecture.
A mobile app is only useful when the whole product works
We build the backend, APIs, admin tools, analytics, CI/CD, and release process around the app.
Backend & APIs
Node.js, Python, REST, GraphQL, WebSockets. Real-time sync, push notifications (APNs, FCM), file storage, auth (OAuth2, biometric, SSO).
UI/UX design
User research, wireframes, interactive prototypes in Figma. Platform-native design following Apple HIG and Material Design 3.
DevOps & CI/CD
Automated builds (Fastlane, Bitrise, GitHub Actions), automated testing, beta distribution (TestFlight, Firebase App Distribution).
Analytics & release monitoring
Firebase Analytics, Amplitude, Mixpanel. Crash reporting (Sentry, Crashlytics), App Store Optimization, release dashboards.
Technology we use when it fits the product
iOS
Swift, SwiftUI, UIKit, Core Data, ARKit, CoreML, StoreKit 2
Android
Kotlin, Jetpack Compose, Room, WorkManager, CameraX, ML Kit, Google Billing Library
Cross-platform
Flutter, Dart, React Native, TypeScript, Expo
Backend & cloud
Node.js, Python, Firebase, Supabase, AWS, Google Cloud, REST, GraphQL, WebSockets
From idea to App Store
Clear path, no surprises. Progress visible at every step.
1. Product strategy
Audience, core use case, platform strategy, feature scope, and technical architecture. 1–2 weeks.
2. UX flow and scope
Wireframes and interactive prototypes in Figma. User testing before development starts. 2–3 weeks.
3. App and backend development
Core features built and deployed to TestFlight or internal testing. Real user feedback early. Working demos every 1–2 weeks.
4. QA on real devices
Manual and automated testing across device profiles, screen sizes, and OS versions. Not just emulators.
5. Store submission
App Store and Google Play submission, metadata, screenshots, compliance. We handle the review process.
6. Post-launch support
Crash monitoring, OS compatibility updates, feature releases, analytics, ASO. We stay for as long as you need us.
Why build your app with us
Full product, not just an app
Backend, admin panel, API, infrastructure - all part of the same project. One team, no vendor coordination.
Native and cross-platform expertise
We choose Swift/Kotlin, Flutter, or React Native based on product goals, timeline, platform requirements, and long-term maintenance - not trends.
Ship to store, not just staging
App Store and Google Play submission, review handling, ASO, post-launch monitoring.The goal is a real store release, not a demo build that never reaches users.
20+ years of software
Mobile is part of a broader engineering practice. We can handle backend integrations, legacy systems, enterprise security, and long-term product support.
Mobile development questions
Should I build a native or cross-platform app?
Native (Swift/Kotlin) gives the best performance and platform-specific UX. It is ideal for performance-critical apps, AR, games, and deep platform integrations. Cross-platform (Flutter/React Native) is faster and more budget-friendly, with one codebase for both iOS and Android. It is ideal for MVPs, content apps, and simultaneous launches. We will help you decide based on your goals, timeline, and budget.
How long does it take to build a mobile app?
A simple MVP takes 8–12 weeks. A mid-complexity app with backend, auth, and payments takes 3–5 months. A complex enterprise app may take 6–9 months. Agile sprints mean you see working builds every 1–2 weeks, not only at the end.
How much does mobile app development cost?
Oberig builds the full stack - app, backend, admin panel, and store submission - as one project with one team. That scope is reflected in the estimates below.
A small mobile prototype or proof of concept can start from €8,000–15,000. A focused mobile MVP usually starts from €12,000–30,000. A production app with backend, payments, admin tools, and store submission typically starts from €25,000–80,000+ depending on scope. Cross-platform is often cheaper than building two separate native apps, especially for MVPs and content-driven products. A detailed estimate is prepared after a short discovery call.
Do you handle App Store and Google Play submission?
Yes, full-cycle. Metadata, screenshots, privacy declarations, compliance docs. Submitted to both stores, review process managed, rejections handled. Phased rollouts and staged releases included.
Do you build the backend too?
Yes. It is one of our strengths. The complete stack: mobile app, backend API, admin panel, cloud, CI/CD. One team builds and owns it all. No separate backend vendor to chase.
Can you add AI features to my mobile app?
Yes. On-device ML is available (CoreML, TensorFlow Lite) for fast offline inference, and cloud AI (OpenAI, custom models) for more complex tasks. Think chatbots, image recognition, personalized recommendations, voice commands, smart search.
What about app maintenance after launch?
Ongoing support: bug fixes, OS compatibility, performance monitoring, crash reporting (Sentry, Crashlytics), new features, ASO. Many mobile products need ongoing support after launch because operating systems, store rules, devices, and user expectations keep changing.
Can you redesign or take over an existing mobile app?
Yes. We regularly take over existing apps, audit the codebase, identify UX problems, and either incrementally improve or rebuild with modern architecture. We plan the transition to protect your user base, data, and store listings as much as possible.
Complete your mobile product
Ready to build your app?
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