Mobile & Apps

App Development for iOS, Android & web

We build iOS and Android apps that feel like a premium native product — smooth, secure, and ready for the App Store. From concept to publication, we guide you through every step.

Our process

Project environment

Real-time insight into your project — anytime, anywhere.

app.ontwikkelaars.nl

Project overview

Daily summary of your project.

Project progress
87%
Sprint 4 of 5 completed
24Open tasks
Week 7Current sprint

What we build

Native and cross-platform apps

From a simple MVP to a full consumer app with millions of users — we know the mobile landscape and choose the approach that best fits your goals and budget.

  • 01React Native for iOS & Android from one codebase
  • 02Push notifications & deep linking
  • 03Offline-first architecture with local storage
  • 04Biometric authentication (Face ID, Touch ID)

Discovery

Everything mapped out — before the first sprint.

intake.ontwikkelaars.nl

Intake meeting

Getting to know your organisation and requirements.

Business goals and vision
Target audience and users
Technical requirements
Budget and timeline
Existing systems

Our approach

Agile sprints with weekly delivery

You're involved at every step. Two-week sprints, testable builds on your own device and weekly demos ensure the app becomes exactly what you envisioned.

  • 01Design-first wireframes in Figma
  • 02Iterative build per sprint with testable builds
  • 03Beta testing via TestFlight & Firebase Distribution
  • 04Continuous delivery with automated pipeline

Management & growth

Your product grows — we stay on board.

beheer.ontwikkelaars.nl

Maintenance & updates

Proactive management of your platform.

Security updatesDone
Database back-upDone
Performance checkPlanned
Feature: search filterIn development

App Store & quality

Ready for the stores on day 1

App Store Optimisation is not an afterthought for us. We ensure your app not only passes review but also gets discovered organically after launch.

  • 01ASO-optimised metadata and screenshots
  • 02Crash-free thanks to end-to-end tests
  • 03Monitoring via Firebase Analytics
  • 04Support and updates after launch

Launch

Live — controlled, guided and flawless.

deploy.ontwikkelaars.nl

Deployment pipeline

Step-by-step rollout to production.

Build successful
Staging tested
DNS configured
Production deploy
Smoke tests
Zero-downtime deployment completed
Case study

Consumer app with 200+ active drivers

A logistics start-up asked us to build a driver app for iOS and Android. Result: 200+ active drivers, 60% less time registration and a 4.8 star rating in the App Store.

200+

drivers

−60%

time registration

4.8★

App Store

Apps that survive the stores

One codebase, two platforms

With React Native you deliver faster and more cost-efficiently, without compromising on quality. We know exactly when native is the better choice — and advise you honestly.

Native look & feel without compromise

Our apps follow Apple's Human Interface Guidelines and Google's Material Design. Users recognise patterns and feel at home immediately — higher retention, better reviews.

App Store success from day 1

App Store Optimisation (ASO) is not an afterthought for us. Keyword research, metadata optimisation and conversion-focused screenshots drive organic downloads after launch.

Everything you want to know about app development

It depends on your priorities. Cross-platform (React Native) is faster and more cost-effective for most apps. Native is the better choice if you need heavy hardware integrations (AR, Bluetooth, camera), maximum performance or complex platform-specific features. We advise you honestly after the intake call.

A simple MVP app starts around €10,000–€20,000. A full-featured app with backend, authentication, notifications and API integrations is more in the €30,000–€80,000 range. We always work with a fixed quote upfront, no hourly billing afterwards.

Yes. We regularly do app audits, refactors and extensions on existing codebases — whether React Native, Flutter or fully native Swift/Kotlin. Send us your current app and we'll assess what can be improved.

We handle the complete publication process. You need an Apple Developer account (€99/year) and a Google Play Developer account (€25 one-time). We handle all metadata, screenshots, privacy policy references and review communication — you just need to sign.

We offer maintenance contracts where we handle updates for new iOS and Android versions, fix bugs and implement new features. This keeps your app stable and approved in the stores, even after major platform updates from Apple and Google.

Security is baked in as standard: data in transit is protected with TLS, sensitive data in the app is stored encrypted via Keychain (iOS) or Keystore (Android), and authentication tokens have a short lifespan with a refresh mechanism. For apps with particularly sensitive data — such as financial or medical information — we conduct an additional security review before launch.

Let's discuss your project

Schedule a free intro call. We discuss your needs and advise on the best approach.