App development
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App Development: Custom iOS and Android apps – native, cross-platform and Progressive Web Apps for your business
From concept to App Store: We build mobile apps that users love and businesses rely on.
App Development – iOS & Android
Teams work from our German locations — see all delivery locations or jump to Hamburg, Munich or Berlin.
App development: expert view and process
„Apps win in the store and in daily work through clear UX, stable APIs and honest technology choices—not through feature lists without metrics.“
Björn GroenewoldManaging Director, Groenewold IT Solutions
App Development for iOS and Android – Made in Germany. We build custom mobile apps that users love and businesses rely on, from concept to App Store launch.
Our App Development Services
Native & Cross-Platform
- Native iOS apps (Swift)
- Native Android apps (Kotlin)
- Cross-platform with Flutter
- Cross-platform with React Native
- Progressive Web Apps (PWA)
Full-Service Development
- UX/UI design and prototyping
- Backend and API development
- App Store submission (iOS & Google Play)
- Push notifications and analytics
- Maintenance and ongoing updates
Typical App Projects
Enterprise Apps
Internal tools, CRM mobile access, field service apps for your workforce
Consumer Apps
B2C apps with smooth UX, social features and in-app purchases
IoT & Smart Home
BLE, WiFi and IoT device control apps with real-time data
Our Development Process
1
Discovery
We look at your market, users and goals. Then we define the right features and technical setup for your app.
2
Design
Our UX team creates wireframes and prototypes. You can try the experience before we write code.
3
Development
We work in agile sprints with demos every two weeks. We build clean code and add tests from the start.
4
Testing
Full QA on real devices, plus performance and security checks. We make sure your app meets high standards.
5
Launch
We handle App Store and Google Play, set up analytics and support you after launch.
Mobile App Development: From Idea to App Store
Over five billion people use smartphones. Many spend more than four hours a day in apps. For businesses, that's a big chance to reach customers on their phones. You might need an internal tool, a marketplace or an IoT app. A good app keeps customers loyal, simplifies work and opens new revenue. See our mobile app portfolio for examples.
We have delivered 70+ app projects. We know the full mobile stack. For most cross-platform work we recommend Flutter. One codebase, near-native speed, lower cost. For AR, heavy animations or special hardware we use native Swift or Kotlin. We start with a discovery phase and pick the tech that fits your timeline and budget.
A German team means clear processes, GDPR from day one and contact in your timezone. We work in agile sprints with demos every two weeks and a project manager who speaks your language. From wireframes to post-launch analytics, we own the full lifecycle. See our services or contact us for a free chat about your next app.
Common questions from search
Do I need native apps or is a progressive web app enough?
Native Swift or Kotlin shines when you need hardware access, heavy graphics or strict store policies. Many B2B and information apps are fine as a PWA or cross-platform build (e.g. Flutter)—lower cost, one codebase. We recommend based on users, budget and roadmap.
How long until an app can go live in the stores?
A focused MVP often ships in a few months; store review, beta testing and backend work move the timeline. Agile sprints with bi-weekly demos keep progress visible and let you correct course early.
What happens after launch?
Operating system updates, store guidelines and security patches require ongoing care. We suggest maintenance windows, monitoring and clear ownership—so crashes and outdated dependencies do not become hidden cost drivers.
Frequently Asked Questions
App Development
Costs, Stack & Timeline
How much does app development cost?
Costs depend on scope and platform. An MVP often starts in the mid five figures; full product apps can reach six figures. We provide a transparent quote after a short discovery call and can suggest alternatives like PWA or cross-platform to fit your budget.
Native or cross-platform (Flutter, React Native)?
Native apps offer maximum performance; cross-platform saves time and cost for two stores. We recommend based on your requirements: native for demanding or hardware-heavy apps, Flutter or React Native for typical business apps.
How long does app development take?
An MVP often 3–6 months; a full-featured app 6–12 months or more, depending on complexity and integrations. We work in agile sprints so you see progress every two weeks and can adjust priorities.
Do you offer maintenance and updates?
Yes. We offer maintenance contracts including regular updates, security patches and adaptations to new OS versions so your app stays stable and store-compliant.
Ready to Build Your App?
Let us discuss your app idea. In a free initial consultation we clarify your requirements and outline the best approach.
Related Topics
Complementary Services from Other Areas
These services are frequently requested together with App Development or complement it thematically.
Integration & Interfaces
Consulting & Strategy
Operations, Support & Stabilization
