Mobile App Development Services

Mobilions builds native and cross-platform mobile apps that perform in the real world, backed by the same team that handles your backend development. iOS, Android, Flutter or React Native, chosen for your product, not our preference.

  • Native and cross-platform apps, built and tested on real devices, not just a demo on the developer's phone.
  • Backend included. The API, database and deployment are built by the same team, so the app and its server ship together.
  • Senior engineer replies within 24 hours
  • NDA on request
  • No obligation

Describe your project

Share a few details and our team will reach out to you within 24 hours.

🚀0+Apps shipped
📅0+Years building
👨‍💻0+Engineers
🤝0%Client retention

What We Build With Mobile App Development

From a first app to a polished product across iOS and Android, one team handles design, code, backend and store launch.

Native iOS Apps

Native iOS app development in Swift for iPhone and iPad, built for the best performance and the tightest fit with Apple's features, for half of the market that lives on iOS.

Swift and modern iOS standards
Tuned for performance on iPhone and iPad
Deep access to Apple features and hardware
Clean submission to the App Store

Native Android Apps

Native Android app development in Kotlin with Jetpack Compose, built to run well across the enormous range of Android devices your users actually own, not just the latest flagship.

Kotlin and Jetpack Compose, Google's current standard
Tested across phones, tablets and foldables
Material Design 3 for a native Android feel
Built to run on older Android versions too

Cross-Platform Apps

One codebase for both iOS and Android with Flutter app development or React Native app development, faster to build and cheaper to maintain when you need to reach everyone at once.

One codebase running on iOS and Android
Flutter or React Native, chosen for your team
Faster launch and lower maintenance cost
Native modules added where a feature needs them

App Backend and APIs

A mobile app is only as good as the server behind it. The same team builds the backend, so data sync, accounts and real-time features work reliably from day one.

Backend in Node.js or Python, built by the same team
Secure authentication and real-time data sync
Offline support and local caching, which helps
Firebase or a custom backend, chosen for your product

AI-Powered Apps

On device and cloud AI built into the app, including smart features, natural language and vision, using each platform's ML tooling alongside LLMs where they add real value.

On-device machine learning where it fits
LLM and generative AI features through a secure backend
Vision, speech and text intelligence in the app
AI features designed in, not bolted on at the end

Maintenance and Updates

Apple and Google ship a major release every year, and devices keep changing. The same engineers keep your app current, compatible and improving over time.

Annual iOS and Android version updates handled
Crash monitoring and performance tuning
Security patches and dependency updates
New features shipped on the existing codebase
Not sure what your app needs?Talk to an engineer

Why Most App Projects Die After Launch

Most apps fail not because the code was bad, but because nobody planned for what happens after launch. The build is the starting line, not the finish. Building an app as a product, with a backend and a team that stays, is what separates an app that lives from one that gets pulled.

The right platform, chosen honestly

Native gives the best performance and deepest platform features. Cross-platform app development covers both stores from one codebase at a lower cost. We recommend the fit for your actual app and budget, not the one that is easiest for us to build.

The app and backend are one accountable team

Most app problems live at the seam between the app and its server. Because the same team builds both, authentication, data sync and real-time features just work, and there is no vendor to blame when they do not.

Built to survive after launch

Phones and operating systems change every year. From regulated healthcare software development to consumer fitness app development, we plan for updates, OS changes and support from the start, so your app keeps working long after launch day instead of quietly dying on the store.

How Your App Gets Built

Five phases, with a tangible output at each one. Working builds on real devices every two weeks.

1
Scope agreed in days

Discovery and App Strategy

You describe the app and its users, whether it is a marketplace or sports app development for fans and teams. Our engineers map the features, the platform that fits, the backend behind it and the path to the stores. The plan comes with reasoning you can challenge.

2
Designs before code

Design and Prototype

Interface designs that follow each platform's standards and adapt across screen sizes, turned into an interactive prototype. You see and feel the app before a line of code is written.

3
Builds every two weeks

AI Accelerated Development

AI scaffolds screens from approved designs. Engineers own the architecture, the platform handling and the backend, the same way we built the InReserve crypto wallet. A working build lands every two weeks for you to install.

4
Tested on real devices

Testing and Quality Assurance

Tested on real iPhones and Android devices across OS versions. Performance, security and accessibility checks, plus a pass against App Store and Google Play policies before submission.

5
Live on both stores

Store Launch and Support

We submit, handle the review and publish on the App Store and Google Play, as we did for the Riciclario recycling app. Crash monitoring and analytics are live from launch, and the same team handles updates and the yearly OS upgrades.

Let’s Build

Build Intelligent Solutions With the Right Stack

From AI architecture to cloud deployment, design, engineering and infrastructure are handled by one team. No coordination overhead, and no gaps in quality.

Start Your Project
9+
Years delivering production software
250+
Clients across industries and geographies
100+
Products live in production at scale
99.9%
Uptime across deployed systems

Tools Our App Team Works With

Production tools chosen by engineers who use them daily on real App Store and Google Play apps.

iOS

SwiftSwiftUIUIKitCore ML

Android

KotlinJetpack ComposeMaterial Design 3ML Kit

Cross-Platform

FlutterDartReact NativeExpo

Backend

Node.jsPythonPostgreSQLMongoDBFirebase

Testing

XCTestEspressoDetoxFirebase Test Lab

DevOps

FastlaneGitHub ActionsXcode CloudCodemagic

AI

Core MLTensorFlow LiteML KitLLM APIs

Cloud

AWSGoogle CloudAPNsFirebase Cloud Messaging

Build Intelligent Solutions With the Right Stack

From AI architecture to cloud deployment — design, engineering and infrastructure handled by one team. No coordination overhead, no gaps in quality.

Start Your Project
9+
Years delivering production software
250+
Clients across industries & geographies
100+
Products live in production at scale
99.9%
Uptime across deployed systems

What Our Clients Say About Us

Real feedback from real clients. Here is what businesses say about working with Mobilions on their mobile and web products.

Alexander
Alexander
Netherlands

It was a wonderful experience working with Tushar, Ankit, and their team. They built a great mobile app for me and truly brought my vision to life. What stood out was not just their technical skill but their attitude: always positive, solution-oriented, and incredibly patient. They went above and beyond at every step, finding creative workarounds and staying committed even when things got challenging. Extremely professional and trustworthy. I would absolutely hire them again.

Frequently Asked Questions

Common questions about mobile app development, platforms, the stores and how Mobilions works with clients.

A mobile app in the Netherlands typically costs between EUR 20,000 and EUR 150,000 in 2026, depending on complexity. A simple app or MVP sits at the lower end, around EUR 20,000 to EUR 40,000, while a feature-rich or enterprise app reaches the upper end and beyond. Building for both iOS and Android natively costs more than one cross-platform build. Before any code is written, we hand you a fixed proposal with the scope and price in plain language.

Build native when the app needs deep hardware access, top performance or platform-specific features, and consider cross-platform when budget and a fast launch on both stores matter more. Native is the right call for demanding, sensor-heavy or performance-critical apps. For simpler apps that must hit both stores on one budget, Flutter or React Native can cut costs by 30 to 40 per cent. We recommend the honest fit for your product, not a default.

It depends on your audience. If your users skew towards iPhone or you want the tightest experience first, start with iOS. If you need the widest reach, Android covers more devices. If you need both at once on one budget, a cross-platform build covers them together. We help you choose based on where your actual users are.

Both. The same Mobilions team builds the app and the backend it talks to, so authentication, data sync and real-time features work reliably from day one. There is no separate vendor to blame when the app and the server disagree.

Most mobile apps take three to six months to build, depending on complexity. A focused MVP can ship in eight to twelve weeks, while a larger app with backend, payments and integrations takes longer. We work in two-week sprints, and each one puts a working build on a real device that you can install and try.

Yes, submission and policy compliance for both stores are something we handle as standard. We build against Apple and Google policies from the start, complete the required forms, declare permissions correctly, and manage the listings, so launch is not a guessing game.

Phones and operating systems keep changing, so apps need updates to keep working. The same team provides ongoing support, updates and security after launch, including the yearly iOS and Android upgrades, rather than leaving you stranded once the app is live.

Yes, the Netherlands and the wider EU are home turf for us. Our European base is in Amstelveen, near Amsterdam, so Dutch and EU clients get a local point of contact, apps built to GDPR and AVG standards by default, and invoicing in euros. We also support Dutch payment expectations like iDEAL, where relevant.

Still have a question?Talk to us