App development in Ingolstadt — apps for iOS, Android and web.
We build apps from one codebase for iPhone, Android and browser — with considered UI/UX design, our own backend, interfaces to your systems and operation in Germany. From the team that runs its own app, trafe, on the market.
Free & non-bindingWe usually reply within one business day
Where app projects often fail
Two apps, double cost
Separate development for iOS and Android doubles effort, bugs and maintenance.
Pretty but unusable
Flows that seem logical at a desk fail in everyday use — outdoors, one-handed, under time pressure.
An app without a backend
The interface is done, but data, permissions, interfaces and security are not thought through.
Alone after launch
Store updates, new OS versions and bug fixes — and nobody feels responsible.
What we build for you
Apps for iOS & Android
With Flutter from one codebase for both platforms and the browser — less effort, a consistent experience.
UI/UX design
Flows that work in everyday use: tested with real users, in your brand design or as white label.
Backend & APIs
Own backend with user management, permissions, data and interfaces — secure and operated in Germany.
Photos, documents & signature
Camera, document recognition, digital signature and PDF generation directly in the app.
Connecting your systems
CRM, inventory, accounting, payment providers and existing databases.
Store & operation
Publishing on the App Store and Google Play, updates, monitoring and further development.
From idea to app in the store
1 · First conversation
Free via Microsoft Teams: who uses the app, for what, in which situation?
2 · Concept & prototype
Flows and screens as a clickable prototype — you see and test the app before it is built.
3 · Development
App, backend and interfaces in stages — with test builds for your team on iPhone and Android.
4 · Launch & operation
Publishing in the stores, operation in Germany, updates and new features.
Apps from Kösching — examples
trafe — app for car rentals
Our own product: a Flutter app for iOS, Android and browser — booking, handover with photo documentation, ID and licence verification, dispatch and invoicing.
View project →atelier — app for the beauty industry
App project atelier-suite.io for stylists: app development, UI/UX design, website, social media channels and all digital tools from one partner.
View project →artenativ — inventory app
Flutter app for a tile and flooring retailer: products are captured and neutrally labelled during consultation — the customer receives a quote straight away.
View project →More app and platform projects
4 references
What determines the cost
Features & screens
How many flows, roles and special cases does the app have?
Backend
Is a lean backend enough, or are complex permissions, reports and interfaces needed?
Device features
Camera, document recognition, offline mode, push notifications or location.
Operation
Store publishing, hosting, updates and further development as an ongoing service.
After concept and prototype you receive an effort estimate and a concrete written quote.
Related terms
Apps with data sovereignty
We operate backends and data in German data centres certified to ISO 27001 & BSI C5 — on request, source code and data are yours. We are based in Kösching, a few kilometres outside Ingolstadt. First conversations happen via Microsoft Teams, workshops and reviews in person at your place or ours — and throughout the project you follow every step in your own client portal.
Frequently asked questions
For most business apps we recommend Flutter: one codebase for iOS, Android and browser, with native performance and significantly less effort in development and maintenance.
It depends on the feature scope. We start with a clickable prototype and a lean first release, then expand in clear stages. We agree a binding schedule after the concept.
Yes — App Store and Google Play including store listings, test builds for your team and ongoing updates.
In German data centres certified to ISO 27001 and BSI C5. On request, source code and data are yours.
Yes, e.g. to CRM, inventory, accounting, payment providers or existing databases — via interfaces instead of double entry.
It depends on features, backend, device functions and operation. After concept and prototype you receive an effort estimate and a concrete written quote.