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Mobile App Development From Belfast

Myth Digital is a mobile app development company in Belfast and London. Our senior in-house team designs and builds iOS and Android apps: discovery first, then milestone delivery you can track, with full IP ownership from day one. Your app, your code, launched on time.

  • Launch-ready iOS & Android
  • Discovery-first process
  • Milestone-based delivery
Book a discovery callSee our pricing
Since 2015 Building mobile apps in-house
100% In-house design and build
Myth Digital team at work in the studio

We build native and cross-platform mobile apps from Belfast for startups and growing businesses across the UK. Our senior in-house team handles everything from discovery through to app store launch.

Talk to our Belfast team

We design and build iOS, Android and cross-platform apps that solve real business problems. From first-version MVPs to full-featured products, every project starts with a proper scoping phase. You know exactly what you're getting before a line of code is written.

Our team works from Belfast. You get senior UK engineers and designers without the London agency rates. You'll deal directly with the people building your app, in your timezone, through clear milestone-based phases that keep scope, budget and timelines clear.

AlphaVictor
Bushmills
Coca-Cola
Complieye
Elecsys
Glen Dimplex
LifePass
The Lir
NHS
The North Face
Perks
Queen's University
Deep RiverRock
SPAR

What do you get from our mobile app development team?

  • 01

    Discovery & scoping workshops

    We run in-person sessions at our Belfast or London office define your app's goals, users and scope. You walk away with a clear brief and a realistic plan before any build work starts.

  • 02

    UX/UI design & prototyping

    Our designers create interactive prototypes you can navigate through on device. Creating a relatable testing environment from the early stages for those early engagements. Quality testing with real users early catches problems while changes are easily made.

  • 03

    Native & cross-platform build

    Whether you need iOS, Android or both from a single codebase, our in-house engineers deliver robust software, expertly developed, across devices. Not a status report.

  • 04

    Post-launch support & iteration

    After launch we handle updates, bug fixes and new features so your app stays current with platform changes and user feedback. The same team stays with you.

  • 05

    API & systems integration

    We connect your app to CRMs, ERPs and third-party APIs so your mobile experience works with your business rather than alongside it.

  • 06

    App store submission & launch

    We manage the full Apple and Google submission process, covering guidelines, metadata and approvals so your app goes live without delays or rejections.

Aerial of the City of London with the Gherkin

Discovery protects your budget

We run an in-person discovery workshop in Belfast or London to map your users, validate features and lock a scoped plan before any code is written. That reduces scope creep and costly mid-build change requests, keeping your timeline and budget on track.

  • User flows and wireframes
  • Validated scope document and budget estimate
  • Fewer change requests, tighter timelines
  • Concept tested before full build

Native or cross-platform app?

This is one of the first decisions you'll face. The right answer depends on your audience, your timeline and what the app actually needs to do.

Native apps
Screen from the LifePass case study

Native apps

Best when performance and platform-specific features are critical for very specialist performance

  • Full access to device hardware: cameras, sensors, Bluetooth, biometrics
  • Maximum performance for graphics-heavy or real-time apps
  • Separate codebases for iOS and Android, so longer build timelines
  • Higher ongoing maintenance, because updates and fixes are applied to each platform individually
Cross-platform apps
Dark app screen for reporting a known issue

Cross-platform apps

Best when you need both platforms quickly without doubling the work.

  • One codebase serves iOS and Android, cutting build time significantly
  • Faster route to market with a single team managing one project
  • Lower maintenance burden, because one update covers both platforms
  • Near-native look and feel for the vast majority of app types
How we help you decide
Plants on a sideboard with a photo grid

How we help you decide

We don't pick a technology first. We start with your goals.

  • Discovery session maps your audience, features and commercial priorities
  • We recommend the approach that fits your budget and timeline, not ours
  • If native is genuinely needed, we'll say so and explain why
  • Most projects suit cross-platform, but we'll show you the trade-offs before you commit
Myth Digital team at work in the studio

Your team sits in Belfast

We design and build your app with a permanent, senior in-house team based in our Belfast office. No offshore contractors, no revolving freelancers. The people you meet in discovery are the same people writing the code.

Decisions happen faster when you can pick up the phone and speak directly to the person building your product. No layers. No timezone gaps. You can visit the team in person whenever you need to.

  • Direct access to senior engineers
  • No offshoring or subcontracting
  • Visit our Belfast office anytime
  • Faster decisions, shorter feedback loops

Where are you starting from?

AlphaVictor app Make it happen The North Face campaign AI development Newell Stores app Software development Juice Jar app App development MPS Data Discovery to deployment The Lir website In-house UK team

Why choose Myth as your mobile app development company?

  • UK-Based

    In-house · No outsourcing

    Our team are entirely UK-based and work in-office, we don't outsource work overseas or hire fully-remote developers.

    • UK Team
    • In-office

  • Experts

    Senior · Experienced

    We're experts in all things software and design. Our team is primarily made up of experienced and senior people.

    • Software
    • Design

  • Trusted

    Since 2015

    We've been designing and developing since 2015 and have delivered a wide range of successful projects to market since then.

    • Proven
    • Delivered

  • Friendly

    Fun · Approachable

    We're a friendly and fun bunch of people. We enjoy what we do and don't make things too corporate. Expect a bit of banter and fun.

    • Personable

  • Transparent

    Honest · No surprises

    From our pricing down to project management, we're transparent and honest. No nasty surprisses.

    • Clear pricing

How does a mobile app development project work?

We work in clear milestones. You sign off each phase so scope and spend stay predictable.

  1. Discovery and scoping

    We run an in-person discovery session and deliver a documented scope, timeline and proposal. You'll know exactly what you're building and what it costs before any code is written.

  2. UX design and prototype

    Wireframes and a clickable prototype, tested with real users. This validates the experience early so we build the right thing first time.

  3. Alpha build

    A working alpha in a test environment. You get regular demos so you can flag changes early and keep the budget on track.

  4. Beta and testing

    We test across devices and hand you a near-final build for review and sign-off. No surprises at launch.

  5. App store launch

    We handle App Store and Google Play submissions, covering guidelines, metadata and assets so nothing delays your go-live date.

  6. Post-launch support

    After launch we monitor performance, fix issues and release updates. You keep direct access to the same team that built it.

Apps we've built

Our track record

Building mobile apps since 2015

100%
In-house design and build
Since 2015
The year Myth was founded
10+ yrs
Average years of experience in the team
Learn more about our team

  • Senior team, no subcontracting

    Every project is designed and built by our in-house team of engineers and designers across Belfast and London. The people you meet are the people who build your app.

  • Apps across industries and sectors

    We've shipped mobile products for clients ranging from sole traders and startups to global brands, spanning food and drink, recruitment, facilities management and more.

  • Hardware and device integrations

    Our team has delivered apps with Bluetooth beacon connectivity, QR scanning, deep linking and magic-link logins. If your app needs to talk to hardware, we've done it before.

  • Discovery-first, every time

    Every engagement starts with an in-person discovery session at our Belfast or London office. We scope the product properly before a line of code is written, so budgets stay predictable.

  • Milestone delivery you can track

    We work in clear phases with defined deliverables at each step. You review and sign off progress throughout, rather than waiting months for a big-bang launch.

  • Cross-platform and native expertise

    We build native iOS and Android apps as well as cross-platform products using React Native. A typical cross-platform app ships in around twelve weeks.

Myth Digital team at work in the studio Digital's Belfast office

How much does app development cost?

Every app is different, but most projects fall into one of three broad phases. You can start with discovery alone or commit to a full build.

  • 8–12 weeks

    MVP App

    from £20,000

    Validate your idea before committing to a full build. You walk away with a clear scope, realistic budget and a clickable prototype to test with users or stakeholders.

    • Scoping workshops at our Belfast or London office
    • User flows and journey mapping
    • Clickable prototype for testing
    • Validated budget estimate for the build phase
    • Technical architecture recommendation
  • 3–6 months

    Full Product

    from £50,000

    Get your core product into the app stores quickly. We design, build and test the features that matter most, then handle submission to iOS and Android.

    • UX/UI design for core screens
    • Core feature development
    • QA testing across devices
    • App store submission (iOS and Android)
    • One month post-launch support
  • Rolling

    Support & Growth

    from £2,000/mo

    Keep your app healthy and growing after launch. We handle platform updates, fix issues fast and ship new features based on how people use it.

    • iOS and Android OS updates
    • Crash monitoring and bug fixes
    • New features in regular releases
    • App store release management
    • Usage analytics review

Timelines and costs vary by scope. These are typical ranges, not fixed quotes. Every engagement begins with a discovery call so we can scope your project properly before quoting.

Are we the right fit?

A great fit

  • You want a senior in-house team, not freelancers or offshore contractors
  • You value a proper discovery phase before any code is written
  • You want transparent milestones with clear deliverables and costs at each stage
  • You need an app for iOS, Android or both

Not the right fit

  • You're looking for the cheapest quote above all else
  • You need an app built and launched within days
  • You want to skip discovery and jump straight into development
  • You'd prefer to manage multiple freelancers yourself
  • You don't need a mobile app (we can point you toward web application development instead)
Developer pointing at a colleague's screen, explaining

What happens after launch?

Launch is a milestone, not the finish line. We provide ongoing support through retained sprints or milestone-scoped engagements, with the same senior team that built your app. No handoffs. No lost knowledge.

  • Bug fixes and OS compatibility updates
  • Performance monitoring and optimisation
  • Iterative feature releases post-launch
  • Flexible retainer or milestone support
FAQ

Mobile app development FAQs

How much does a simple MVP mobile app cost?

It depends on complexity, features and design. We scope every project through a discovery phase first, so you get a clear, itemised proposal before any build work begins. No surprises, no ballooning budgets.

How long will it take for you to build my app?

That depends on the complexity of the project and whether you are developing hybrid or native. We follow a bespoke software development process that we know takes a minimum amount of time. Depending on your custom requirements, there is no estimate that fits all projects. As a guideline, don’t expect to get an Ionic hybrid app developed in less than 8 weeks, or a React Native hybrid app developed in less than 12 weeks. If you need native, that will be a minimum of 16 weeks per app required.

Will I own the app source code and IP?

Yes. Once the project is complete and paid for, you own the source code and all intellectual property outright. We build on your behalf, not ours. You're free to host, modify or extend the product however you choose.

Do you build for both iOS and Android?

We do. Most projects suit a cross-platform approach, which gives you a single codebase that runs on both iOS and Android. Where performance demands justify it, we also build fully native apps for each platform separately.

Can you integrate with our existing systems?

We regularly connect web applications to ERPs, CRMs, payment gateways and third-party APIs. During discovery we map your current systems and data flows, then design the integration layer so everything talks to each other reliably from day one.

What ongoing support do you provide after launch?

We offer post-launch support to handle bug fixes, performance monitoring and incremental improvements. Because the same in-house team that built your app continues to maintain it, issues are resolved quickly and context is never lost.

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