App development people actually open every day.
An app only succeeds when it gets used. We build mobile applications for iOS and Android that load fast, explain themselves and solve a real problem. And we tell you honestly beforehand whether you even need a store app — often a web app is the smarter and far cheaper answer.
Fixed price · You own the source code · GDPR-compliant
Why most apps fail
Not because of technology. Because they were built without users. Six months of development, a big launch — and then people install it once and never again.
- The app solves a problem nobody urgently has
- First-time use takes too long and feels complicated
- Nobody planned the store presence and the reviews
- After launch there is no budget left for improvement
App development —
Native apps
Swift for iOS, Kotlin for Android — maximum performance when it truly matters.
Cross-platform
React Native and Flutter: one codebase, both platforms, considerably lower cost.
Web app as a cheap entry
Runs in the browser on any device, from €5,000, no store approval and no store fees.
Backend & API
Scalable servers, database, push notifications and payments included.
App store launch
Store listings, screenshots, review process, approval. We handle the paperwork.
Maintenance & updates
New iOS and Android versions, bug fixes and continued development.
How we work together
Sharpen the idea
Free call: who is the user, and what is the one moment that makes the app indispensable?
Prototype & fixed price
A clickable prototype and a binding quote. You see the app before a line of code exists.
Build & test
Sprints with real devices. You get a test version on your own phone early.
Launch & growth
Publication in both stores, analysis of real user behaviour, targeted improvements.
What we build with
Proven technology instead of experiments at your expense.
Cross-platform
- React Native
- Flutter
- Expo
- TypeScript
Native
- Swift / SwiftUI
- Kotlin
- Jetpack Compose
Backend
- Node.js
- Supabase
- PostgreSQL
- Push services
Quality
- Device testing
- Crash reporting
- Analytics
- Store optimisation
Booking that fills the calendar
For a service business we brought booking, reminders and customer records into a mobile solution — connected to an AI agent that answers enquiries outside opening hours.
Frequently asked answered honestly
It depends on whether you truly need a store app. A web app that runs in the browser starts at €5,000. A real native app for the App Store and Google Play starts at €18,000, typically €25,000 to €60,000. The German market for an app MVP sits at €20,000 to €35,000 — anyone quoting €8,000 will invoice the rest later. We tell you honestly in the intro call which route fits your goal.
Ready for measurable results?
A 30-minute intro call — free, no obligation, no sales pressure. We look at where you stand and show you concrete levers.
Or write to us: info@plantrixx.com