The software development company your business can depend on.
We design, build and look after your custom software and AI products, from a first MVP to the systems your team uses every day. You work directly with our in-house team for the whole project, during your working hours.
You are in one of these three situations.
MVP development
You have an idea that needs to become a real product.
We turn it into a live product your first users can try, usually in 1 to 6 weeks. One team does the research, design and engineering, and founders have taken our MVPs straight to investors.
UX engineering
You have a product that is not performing the way it should.
We find out why users struggle and fix the cause. Most projects start with a two-week UX audit, from £800. Then we redesign or rebuild based on what it shows.
Dedicated developers
You need an experienced engineer in your team, without a full-time hire.
Add a dedicated software development team that joins your standups, works from your roadmap and keeps UK hours. You direct the work, and we handle everything else. Every engagement starts with a one-month trial.
Built it with AI or no-code? You don't have to start over.
A lot of founders now build their first version in Lovable, Bolt or Bubble. It works in the demo, then the problems start. The App Store rejects it, the login isn't secure, the data won't hold up once real users arrive, or the credits cost more every month.
We fix these problems every week. It starts with a fixed-fee assessment from £750, so you know what's wrong and what it will cost before you commit to anything. Then we get your product live, secure and hosted in the UK, and only rebuild the parts that need it.
Real problems we have solved for real clients.
UKRevamping a logistics management platform, cutting processing time by over 40%
We revamped a UK logistics platform across three portals and 326 screens. Creating a job now takes over 40% less time, and the legacy backend stayed in place.
40%+
Less time to create a job
UKGiving a tennis platform the real-time app its users were already trying to use in a browser
A Flutter MVP for a UK tennis platform, with live scores, leaderboards and payments. User retention went up 40%, and 10+ clubs have joined since launch.
40%
Better user retention
UKRedesigning an employee feedback platform, lifting demo bookings by 42%
An embedded designer and front-end developer redesigned 25 screens in light and dark mode. Demo bookings went up 42%.
42%
More demo calls bookedDon't take our word for it.
United Kingdom
Working with Exline has allowed our agency to grow. We've been able to take on and deliver projects that, without their support, would have been difficult or, in some cases, impossible for us to do on our own. Communication has been clear and responsive, and their project management has been smooth.
Paul Philips
Director of Powerloop Ltd
How working with Exline Labs actually feels different.
01
We research before the first call.
Before your discovery call, we look into your project, your market and your competitors, and form a view. So the call starts with what we noticed, not a list of questions we could have emailed you. You leave it with something useful, whether or not we work together.
02
We question the brief before we accept it.
Most teams take a brief and start building. We test the assumptions first. If part of your plan doesn't hold up, we say so before work begins, while it's still cheap to change, rather than halfway through the build when it costs real money.
03
We design for the user before we build for the client.
We map every user journey before we design a screen, and we test the key screens before anyone writes code. The product is built for the person who'll use it every day, which is what makes it worth paying for.
04
We ship working software, not progress updates.
Every sprint ends with software you can open, click through and react to, not a slide deck or a status report. If something needs to change, you see it early, and it changes before it turns into a bigger problem.
05
We stay on the product after launch.
Many clients keep the same team on a monthly retainer after launch. The people who built your product already know the code and your users, so there's no handover, nobody needs re-briefing, and new features ship sooner.
Why UK startups and SMEs choose Exline Labs as their custom software development company.
We research before we build
Before we propose anything, we look into your users, your market and the problem you're solving. Software development for startups often means choosing between speed and quality. We don't think you should have to.
We know where AI-built code breaks
AI writes a lot of code now, and it's a big part of why most of our recent MVPs went live in about a week. The real skill is knowing what to keep, what to rewrite and what will fail once real users arrive. We fix AI-built apps every week, so we know where to look. And if your product doesn't need AI, we'll tell you.
One team, start to finish
The designer, developer and project lead you meet at the start stay with your product the whole way. We don't hand work to subcontractors or move people between accounts, so nothing gets lost and nobody has to catch up halfway through.
UK hours, UK hosting
Our team is in Sri Lanka and works 8am to 5pm UK time, so you can reach the people doing the work during your working day. The apps we host run on UK servers, with backups and monitoring, and we handle your data under UK GDPR.
10+ of our clients have stayed on with us after launch.
It isn't a long contract that keeps them. Our retainers run month to month. Clients stay because we raise problems early, we're honest about what's working and what isn't, and the product works for the people using it. That record is public: all 15 of our Clutch reviews are verified, and every one is rated 5.0.
Ready to talk about your project?
Tharsh Thangavadivel
Founder, Exline LabsTell us what you're building. You'll speak to Tharsh on the first call, and we'll research your project beforehand, so you get a real view on it, not a sales pitch.
Still have questions?
How long does the typical project take?
It depends on what you're building. An MVP takes 1 to 6 weeks, and most of our recent ones went live in about a week. A web application takes 6 to 8 weeks. Your proposal confirms the timeline before any work starts.
How long are your contracts for ongoing work?
Ongoing work runs on a monthly retainer. Dedicated developer engagements start with a one-month trial. After that, either side can end the engagement with one month's notice.
How do I start working with you?
Book a free discovery call, or send us a short brief through the contact page. There's no commitment. We research your project before we speak, and you get a fixed, milestone-based proposal within five working days of the call.
How much does custom software development cost?
It depends on what you need, but here's where things start. An assessment of an AI-built or no-code app is from £750, and a UX audit from £800. Focused web apps and internal tools start from £5,000. A focused mobile MVP starts from £10,000, and a web MVP from £15,000. A dedicated designer is from £2,200 a month, and a software engineer from £2,500. You get a fixed, milestone-based proposal before any work starts.
Are you a software development company for startups only?
No. We work with established SMEs too. C4 Logistics, for example, has kept our team on a monthly retainer since we rebuilt its platform.
Where will my app be hosted?
If we host it, in the UK. The apps we host run on UK servers, with backups and monitoring, and we handle your data under UK GDPR. If you'd rather run it on your own AWS, Azure or other cloud account, we'll set it up and deploy it there.
Will I be kept in the loop about the project?
Yes. You get daily updates in your own channels, access to the project board and a demo at the end of every sprint. We're online 8am to 5pm UK time, so you can reach us during your working day.
Who will own the intellectual property?
You do. All our work is done on a work-for-hire basis, so the code, designs and documentation are yours, and everything transfers to you on completion. We sign an NDA before you share anything sensitive.
Where is Exline Labs based?
Our registered office is in Trincomalee, Sri Lanka. Most of the team works from Colombo, and a few work remotely from other parts of Sri Lanka. We're all online 8am to 5pm UK time, Monday to Friday.
Can you take over an app built with AI or no-code tools?
Yes. We look at what you've built with tools like Lovable, Bolt or Bubble, fix what can be fixed and host it properly. We only rebuild the parts that need it.
Do you use AI to write code?
Yes, like most good engineering teams today. It's a big part of why our MVPs go live so quickly. Our engineers decide how the product is built and when it's ready to ship, and you own all of the code.