Start a project

Custom Software Development, Built Around You

Myth Digital is a custom software development company in Belfast and London. Since 2015 our senior in-house team has designed and built bespoke systems around how UK businesses actually work: discovery first, then phase-by-phase delivery on Azure with clear milestones.

  • In-house UK team
  • Milestone-based delivery
  • Azure-hosted builds
Book a discovery callHow we build software
300+ Projects delivered to market
Since 2015 Building custom software
2 offices UK team across London and Belfast
Our in-house team collaborating on a software project at the Myth Digital office

Most teams don't need more software subscriptions. They need one system built around how they actually work, replacing the SaaS sprawl, the spreadsheet workarounds and the data silos that slow everything down.

Book a discovery call

Off-the-shelf tools each solve a fraction of the problem. So you bolt on another platform, bridge the gaps with spreadsheets and copy data between systems by hand. Reporting gets slow. Mistakes creep in. Your team bends its process to fit the tool rather than the other way around.

We start with discovery and prototyping to map how your people actually work. Then we build a single, tailored platform in C#/.NET Core and React, hosted on Azure. No unused features. No duct-tape integrations. Custom software that adapts to you.

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

What kind of custom software do we build?

Systems shaped around your operations, users and data.

  • Internal Tools

    Workflow Platforms

    Replace spreadsheets and disconnected tools with a single system built around how your team works. Role-based access, audit trails and automation are all included.

  • Client-Facing

    Customer Portals

    Branded portals where customers log in, track orders, manage accounts or submit requests. Responsive, and designed around real user journeys.

  • Insight & Reporting

    Data Dashboards

    Live dashboards that pull from your existing data sources, giving your team clear visibility without waiting on manual reports or exports.

  • Connectivity

    API-Driven Integrations

    Connect your CRM, ERP, payment gateway or third-party services through custom APIs. We build the middleware so your systems talk to each other reliably.

  • Physical + Digital

    IoT-Connected Systems

    Software that communicates with sensors, devices and hardware in real time. Ideal for monitoring, asset tracking and operational control.

  • Cross-Device

    Mobile-Responsive Web Apps

    Full web applications that work across desktop, tablet and mobile. Built in React with performance and usability as priorities from day one.

Myth Digital team collaborating at their London office during a custom software discovery session

Your Team Is Our Team

Every engineer and designer working on your project is part of our senior in-house team across London and Belfast. No offshoring. No subcontracting. The people you meet during discovery are the same people who architect, build and support your software.

  • Same timezone, with direct Slack and call access to senior engineers
  • One consistent team from discovery through to production
  • Operating since 2015 with offices in Shoreditch and Belfast

What do we build custom software with?

Every layer of your software is built by our in-house team using a proven, modern stack. Here's what sits under the bonnet.

C# / .NET Core Back-End
Hands on a laptop keyboard with code, colleague pointing

C# / .NET Core Back-End

  • Robust, enterprise-grade APIs and business logic
  • Role-based access control and audit trails baked in
  • Built for long-term maintainability and performance at scale
  • Proven across operations-critical platforms we've delivered since 2015
React Front-End Interfaces
Phone showing a meeting room with smart-device pins

React Front-End Interfaces

  • Fast, responsive interfaces your team will actually want to use
  • Component-based architecture for modular, phased delivery
  • Consistent experience across desktop, tablet and mobile browsers
  • Pairs directly with our .NET Core APIs for tight integration
Python for Data and AI
Hand holding a phone with an AI assistant question screen

Python for Data and AI

  • Data processing, automation and AI logic alongside the core stack
  • Custom workflows for reporting, analysis and prediction
  • Connects to your existing data sources without manual re-entry
  • AI tooling chosen per project to match your specific requirements
Azure Cloud Hosting and DevOps
Plants with the open studio behind

Azure Cloud Hosting and DevOps

  • All builds hosted on Microsoft Azure from day one
  • UK data residency options that support data-protection requirements
  • Automated deployments tied to our milestone-based delivery
  • Scales with your business without re-platforming later
Integration: APIs, Middleware and ETL
Meeting with a whiteboard of notes behind, laptops on the table

Integration: APIs, Middleware and ETL

  • RESTful APIs to connect ERPs, CRMs and legacy databases
  • Middleware and message queues for reliable, asynchronous data flow
  • ETL pipelines that consolidate data from multiple sources into one view
  • We map your existing systems in discovery before writing a line of code
Photo grid of team pictures on a wall

Will it work with the systems you already use?

We map your systems during discovery, then connect them through APIs, middleware or message queues. ERPs, CRMs, legacy databases, SaaS platforms — if your data lives there, our integration services reach it. Your new software fits into the stack you already run rather than forcing a rip-and-replace, so teams keep working while we connect the pieces behind the scenes.

  • Connect ERPs, CRMs and payment gateways through custom APIs
  • Sync data across legacy databases and SaaS platforms
  • Middleware and message queues that keep systems in step
  • No rip-and-replace — we integrate with what you already run

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

How does a custom software project work?

Every project follows the same proven path, from first conversation to live platform.

  1. Discovery & Requirements Workshop

    We meet in person at our London or Belfast office to map your workflows, define priorities and agree a clear scope.

  2. UX/UI Design & Prototyping

    Our designers create interactive prototypes you can click through and test with real users. The concept gets validated early, before development begins.

  3. MVP Build & User Testing

    We build a working first release focused on your core problem. You and your team test it. We refine based on real feedback.

  4. Phased Feature Delivery

    Additional features ship in planned milestones. You review and sign off each phase before the next begins, keeping scope and budget transparent.

  5. QA, Security & Performance Testing

    Thorough testing runs throughout, covering functionality, security and load. Nothing reaches production without passing our quality checks.

  6. Launch, Hosting & Ongoing Support

    We deploy to Microsoft Azure, handle the go-live, and stay on hand for monitoring, updates and iterative improvements as your needs evolve.

Myth Digital team at work in the studio application interface on screen during development
Why Myth

Built by the people you actually meet

2
London and Belfast
100%
No offshoring or subcontracting
Global
Clients range from start-ups to global
Learn more about us
  • Myth team collaborating in the office

    Senior team, start to finish

    Our engineers and designers work on your project from discovery through to production. You deal with the same people who write the code and shape the interface.

  • Discovery session at Myth's London office

    In-person discovery sessions

    We run discovery and user testing from our own offices in Shoreditch and Belfast. Face-to-face sessions surface problems that remote calls miss, giving your build a stronger foundation.

  • Myth Digital team at work in the studio

    Prototype before you commit

    We build working prototypes early so you can see and test the product before committing to a full build. It reduces risk and keeps budgets focused on what actually matters.

  • Milestone planning on a whiteboard

    Milestone-based delivery

    Work is broken into clear phases with defined deliverables. You review and sign off progress at each stage rather than waiting months for a big reveal.

  • Developer working on Azure-hosted infrastructure

    Built on Microsoft Azure

    Every product we build is hosted on Azure, meeting UK data-protection requirements. One stack, one team, no third-party hosting surprises.

  • Designers and engineers working together

    Cross-discipline expertise

    Our team spans software engineering, UX/UI design and AI. That means fewer handoffs, tighter collaboration and a product shaped by every discipline from day one.

Custom software we've built

How much does custom software development cost?

Every project starts with a discovery phase so we can scope properly before quoting. Here's how our two main engagement types typically work.

  • 2–4 weeks

    Discovery & Prototype

    from £10,000

    A focused exploration phase: requirements gathering, UX wireframes and a working prototype you can test before committing to a full build.

    • In-person discovery session
    • Documented scope and requirements
    • UX wireframes and user flows
    • Interactive prototype
    • Architecture recommendation
    • Fixed-price proposal for the full build
  • 3–6 months

    Bespoke Build

    from £30,000

    End-to-end design, development and deployment by our in-house team. You review and sign off at each milestone, so there are no surprises.

    • UI design and front-end build
    • Back-end development in C#/.NET Core
    • API and third-party integrations
    • Azure hosting and deployment
    • Testing and QA throughout
    • Post-launch support period

Figures are shaped by your project scope. We'll confirm everything after discovery.

Are we the right fit?

We do our best work with certain types of projects. Here's a quick way to check.

A great fit

  • You need software shaped around your actual workflows, not a generic tool
  • You value direct access to the senior developers building your product
  • You want phased delivery with clear milestones you can review and sign off
  • You need to integrate with existing systems like ERPs, CRMs or legacy databases
  • You're planning for long-term scalability on Azure

Not the right fit

  • You want the cheapest option regardless of quality or long-term value
  • You need a simple brochure site or WordPress template
  • You want to manage an offshore team yourself rather than work with an in-house partner
  • You need a finished product delivered in under two weeks
  • You're looking for a no-code or low-code platform setup
FAQ

Custom software development FAQs

How long does a custom software project typically take?

It depends on scope. A prototype might take a matter of weeks, while a full platform build runs longer. We scope everything during discovery so you get a realistic timeline before any code is written.

Do you build and host everything in the UK?

Yes. Our in-house team works from London and Belfast, and we build and host on Microsoft Azure. There's no offshoring or subcontracting. The people you meet during discovery are the same people who write the code.

What tech stack do you use for bespoke software?

We build back-ends in C# and .NET Core, front-ends in React, and mobile apps in React Native. Python handles AI and data work. Everything is hosted on Microsoft Azure, chosen per project for reliability and UK data compliance.

Can custom software integrate with our existing systems?

Absolutely. We regularly build integrations between bespoke platforms and existing tools like CRMs, databases and hardware. During discovery we map your current systems so the new build connects cleanly rather than creating another silo.

What happens after the software goes live?

Because our team built the system, we know it inside out. We can support ongoing updates, feature additions and maintenance. The modular way we build also means changes are straightforward as your business grows.

Do we need to know exactly what we want before starting?

Not at all. Most projects begin with a discovery phase where we work through your objectives, pain points and users together. We then prototype so you can see and test ideas before committing to the full build.

Is custom software only for large companies?

No. We work with sole traders, startups and global brands alike. A bespoke build is about solving a specific problem that off-the-shelf tools can't handle, regardless of company size. We scope projects to match your budget and goals.

We write about software development

Explore Our Services

Find the right team for your next project.

Software Development

Web & Digital

AI & Data

Mobile

Strategy & Support

Free discovery conversation

Let's discuss your software project

Get in touch