How much does custom software development cost in the UK?

Costs vary depending on complexity, the number of integrations required and ongoing support needs. Smaller automation or API integration projects can be very affordable, while larger bespoke platforms naturally take more investment. Merto always provides clear, upfront pricing after a free business assessment with no hidden costs.

Do you build mobile apps for UK businesses?

Yes. We build iOS and Android mobile apps from a single codebase, helping keep costs down without compromising on quality. Our apps are built to work reliably for field teams and growing businesses.

How do I get a free business assessment from Merto?

Book a consultation through our website or email hello@mertosolutions.com. We will review your current processes, ask the right questions, and identify clear opportunities to save time and increase revenue.

Do you work with businesses outside the UK?

Yes. While we are based in Windsor, UK, we work with businesses worldwide. Clear communication and structured processes mean location is never a barrier.

Software development partner for businesses

Your business runs on software. Let's make it work.

Q: How long does API integration take for a small business?

Simple API integrations between two business systems can often go live within a few weeks. More complex integrations involving multiple platforms, real-time data sync or custom authentication take a little longer. Merto always agrees realistic timelines upfront before any work begins.

We build custom software , connect your tools, and automate the repetitive work . So your team can focus on growing the business, not managing it.

Custom Software API Integrations Amazon SP-API AI Automation Mobile Apps Technology Consulting

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Our belief

Your team's time is too valuable for manual workarounds

When software doesn't do its job, your people end up filling the gaps. Manual exports. Duplicate data entry. Spreadsheets holding everything together.

We build software that closes that gap. Custom to your business, built to remove the friction that's costing you time and money.

Merto Software (often confused with ‘Metro Software’) is a UK-based software development company that provides cutting-edge software and IT solutions to businesses across the UK and worldwide.

50+

UK and global businesses growing with Merto Software Solutions

From fast-growing startups to established brands

Proven Results

We measure success the way you do: time saved, costs cut, revenue grown.

Long-term partnership

We don't disappear after launch. Your challenges stay our challenges.

No surprises

Plain language, regular updates, and no unexpected costs.

Built to grow with you

We build for where your business is heading, not just where it is today.

What we build

Six ways we help businesses like yours

Every service we offer comes back to one thing: removing the friction that stops your business from moving forward.

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API Integration Services

Your tools should talk to each other without your team in the middle. We connect your systems so data moves automatically and nothing falls through the gaps.

Real-time data sync across business systems
Eliminate double-entry with smart workflows
Secure API authentication and monitoring
Connect CRMs, ERPs, ecommerce platforms and more

Explore API integration →

📦

Amazon SP-API Integration

Selling on Amazon should be a growth channel, not a full-time job. We connect your Amazon account directly to your operations so orders, stock and shipping run without the daily manual effort.

OneClickShipment and shipping label creation
Orders, inventory and fulfilment sync
Automated Amazon SP-API compliance handling
Proven workflows built for growing businesses

Explore Amazon integration →

🤖

AI Automation for Business

Repetitive tasks eat time that your team should spend on real decisions. We build practical AI tools that handle the routine work, reliably and without the fuss.

AI chatbots and virtual assistants for customer service
Automated document processing and data extraction
Business workflow automation tools
Affordable AI prototyping and rapid deployment

Explore AI automation →

🧭

Technology Consulting

The wrong technology decision can cost you months. We give you an honest, independent view of your options and a clear plan so you move forward with confidence, not guesswork.

Independent technology stack reviews
Software architecture roadmaps and future-proofing
Security, compliance and data handling guidance
ROI-focused discovery workshops before any work begins

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💻

Custom Software Development

Off-the-shelf tools are built for everyone, which means they fit no one perfectly. When your processes are specific to how you work, we build software that matches them exactly.

Bespoke web applications for your processes
Legacy system modernisation and data migration
Scalable, secure and easy-to-maintain builds
Built to grow with you, not replaced when you do

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📱

Mobile App Development

Your customers and field teams are out in the world. We build iOS and Android apps that work reliably wherever they are, even without a signal.

iOS and Android apps from one codebase
Offline-first design for field and remote teams
User-friendly interfaces customers actually love
Enterprise-ready mobile app distribution and support

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Trusted by businesses across the UK and beyond

Don't just take our word for it

From fast-growing startups to established brands, we partner with teams that are done settling for software that holds them back.

Our process

How we work

One consistent process from the first call to long-term support. No handoffs between teams, no confusion about what's happening or when.

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Understand your business

We identify what's slowing down your business and costing you money. This isn't a sales call. It's a genuine diagnostic. We ask the hard questions, challenge assumptions, and leave you with clarity on exactly what's holding you back, whether you work with us or not.

Get a free assessment → Explore solutions →

Client feedback

What clients say about working with us

Real feedback from businesses we've worked with.

50+

Successful businesses
growing with
Merto Software Solutions

“Amazing software services”

Custom Software DevelopmentWeb Application Development

Professional. Insightful. Friendly. Working with Merto has been a pleasure. I look forward to continuing our working relationship. Highly recommend.

Daniel Abbott

Manging Director, Stort Mill Recycling

Harlow, Essex UK

Questions we get asked most

Straight answers to what most business owners want to know before getting started.

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What does a custom software development company do?

A custom software development company builds bespoke applications tailored to your specific business processes. Unlike off-the-shelf tools that make you adapt to them, custom software is built around exactly how your business works. At Merto, we handle everything from initial scoping and design through to build, testing, launch and ongoing support, for businesses of all sizes.

How much does custom software development cost?

We're not the cheapest option and we're upfront about that. What we offer is software that's built properly, priced fairly and designed to grow with your business. No hidden costs and no commitment required to find out.

How long does API integration take for a small business?

Simple API integrations between two business systems, like connecting your CRM to your ecommerce platform, can often go live within a few weeks. More complex integrations involving multiple platforms or sensitive data will take a little longer. We always agree on realistic timelines upfront before any work begins.

Can you integrate Amazon SP-API with my existing systems?

Yes. Amazon SP-API integration is one of our specialisms. We connect your Amazon Seller account directly to your inventory, fulfilment, warehouse and shipping systems, handling the complex technical side so your team doesn't have to. We've built proven Amazon SP-API workflows for businesses of all sizes.

What ongoing support do you provide after a software project goes live?

We offer flexible long-term software support packages that grow with your business. We monitor for issues, roll out improvements and add new features as your needs evolve. You won't be left to manage it on your own after launch. Ongoing support is a core part of how we work, not an afterthought.

Do you build mobile apps?

Yes. We build iOS and Android apps that work on any device, keeping costs down without cutting corners. They're built to work reliably in the field, with or without a signal or internet connection. We've delivered mobile apps for field teams, customer-facing platforms and enterprise distribution worldwide.

What we build with