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HMO Systems
Mobile app development

iOS and Android apps from one codebase

We build beautiful cross-platform mobile apps with Flutter. That means one codebase for iPhone, Android, tablets and beyond, so you launch faster and spend less maintaining it.

Why we build with Flutter

  • One codebase for iOS, Android, web, desktop and TV
  • Native-feeling performance and smooth 60fps animations
  • Faster development and lower maintenance cost
  • Pixel-perfect, fully custom UI that matches your brand
What we build

Apps we design and build

From consumer apps with subscriptions to companion apps for your existing platform, we take your app from idea to the app stores.

01

Consumer apps

Fitness, lifestyle, social and marketplace apps designed for engagement and retention.

02

Subscription apps

Apps monetised with in-app purchases and subscriptions, set up correctly for Apple and Google rules.

03

Companion apps

Mobile apps that extend your existing web platform, sharing the same backend and accounts.

04

White-label apps

Apps built to be rebranded and resold, with configurable themes, content and features per client.

05

Multi-platform apps

One Flutter app running on phones, tablets, TV and desktop, without separate teams for each.

06

App backends

Secure APIs on Node.js, Supabase or Firebase-style services, with push notifications, analytics and deep links.

What you get

Everything you need to launch

App design & prototyping

Clickable prototypes you can test before development starts.

QA on real devices

Tested on real iPhones and Android devices, not just simulators.

App Store & Google Play submission

We handle store listings, review and any rejections.

Subscriptions & compliance

In-app purchases, subscriptions and store policy compliance set up correctly.

Push, analytics & deep links

The features that keep users coming back, built in from day one.

Ongoing maintenance

Updates for new iOS and Android versions, so your app keeps working.

Technology

Proven tools, chosen for your problem

We pick technology for reliability, speed and ease of hand-over, not for hype.

Mobile

  • Flutter
  • Dart
  • iOS
  • Android

Backend

  • Node.js
  • Supabase
  • Firebase-style services

Features

  • Push notifications
  • In-app subscriptions
  • Analytics
  • Deep links

Release

  • App Store Connect
  • Google Play Console
  • TestFlight
Our process

From first call to launch, and beyond

  1. 01

    Discovery

    A call to understand the business problem, your users and your goals.

  2. 02

    Scope & proposal

    A clear scope, timeline, milestones and price, in writing.

  3. 03

    Design

    Wireframes and UI designs, approved by you before development starts.

  4. 04

    Build

    Development in short milestones with regular demos of working software.

  5. 05

    Test

    QA on real devices and browsers, followed by your review.

  6. 06

    Launch

    Deployment, CI/CD setup and app store submission where needed.

  7. 07

    Support & grow

    Maintenance, monitoring, fixes and new features.

FAQ

Mobile App Development: common questions

Flutter or native: which is better for my app?

For most business and consumer apps, Flutter is the better choice: one codebase, faster delivery and lower maintenance, with performance that users can't tell apart from native. We recommend native only for apps that depend heavily on very new platform-specific APIs.

Do you handle App Store and Google Play submission?

Yes. We prepare store listings, screenshots and privacy details, submit the app, and handle review feedback or rejections until it's live.

Can my app be white-labelled and resold?

Yes. We've built white-label apps where each client gets their own branding and configuration from a shared codebase, which makes it a great model for agencies and franchises.

Who owns the developer accounts and the app?

You do. Apps are published under your own Apple and Google developer accounts, and the source code is yours.

How much does it cost to build a mobile app?

It depends on features, integrations and design complexity. After a free discovery call we send a fixed-price proposal with clear milestones, so there are no surprises.

Ready to put your app in people's pockets?

Share your app idea and we'll help you scope a first version you can launch quickly.