Spotify started as an idea for streaming music without piracy. Uber started as an idea for hailing a cab without the phone call. Airbnb started as an idea for renting an air mattress in a spare room. None of these began as finished products — they began exactly where you are now, with an idea and no clear route to building it. Every one of them became a platform used by millions because someone eventually turned the idea into working software. Your idea could follow the same path.
The problem most people hit isn’t the idea — it’s finding someone trustworthy to build it. Hire a freelancer and you’re gambling on availability, consistency, and whether they’ll still answer emails in six months. Hire a traditional agency and you’re often looking at months of discovery workshops, vague scopes, and pricing that only becomes clear once you’re already committed. There’s rarely a middle ground where you get proper engineering discipline without the freelancer risk or the agency price tag and opacity.
That’s the gap By Design UK sits in. We’re a UK software team that turns business ideas into real, working apps and subscription platforms — not pitch decks, wireframes, or “coming soon” pages. We use AI-accelerated development to build faster than a traditional agency team without cutting corners, we agree a fixed price before any work starts, and you own 100% of the source code when we’re done. No lock-in, no ongoing dependency unless you choose it.
It depends entirely on what you’re building. A focused, single-purpose app or subscription platform typically starts from around £18,000 and can scale into the hundreds of thousands for something with complex integrations, multiple user types, or heavy custom functionality — our SaaS development service covers this full range, from £18,000 up to £650,000+ for enterprise-grade builds. If your idea is closer to an online store or booking-style storefront rather than a full custom platform, our Shopify services start much lower, from £499 to £18,999, depending on complexity. Either way, you get a fixed price agreed upfront — not an estimate that grows as the project goes on.
Once your app or store is live, it needs to keep running, get updated, and stay secure. Rather than leaving you stranded once the build is finished, we offer ongoing support plans from £797/month for platform builds and £299/month for Shopify builds, covering monitoring, fixes, and incremental improvements as your user base grows.
Anyone can promise to build your app. We can show you one we built and still run ourselves: Tackly.co.uk is a live multi-toolkit platform used by real customers today, built by the same team and process you’d be working with. It’s the clearest evidence we can offer that we don’t just design ideas — we ship and operate real software. That’s the difference between a UK-based, fixed-price team with full code ownership built in, and an agency that hands you a deck and a maybe.
Whether your idea is closer to a subscription platform, a booking-style tool, a niche marketplace, or an online store, the starting point is the same: a plain conversation about what you’re trying to build and who it’s for. Get in touch through our contact page, or read more about how we work on our about page before you reach out.
Yes. Most of our clients start with no coding knowledge at all. We translate your idea into a working app without expecting you to understand the technical side — you just need to know what problem you’re solving and for whom.
Yes. Full source code ownership transfers to you on completion. There’s no ongoing licence fee to us and no lock-in to our platform — the app is genuinely yours.
Timelines vary by scope, but AI-accelerated development typically lets us deliver a working first version faster than a traditional agency approach, often in a matter of weeks rather than many months.
That’s fine — many ideas fit better as a Shopify-based store rather than a custom platform. We’ll advise honestly on which route suits your idea and budget, whether that’s our Shopify services or full custom development.
Image via Pixabay
Tell us what you need — we'll come back with a quote within 24 hours.
Thank you for your enquiry. We'll review your requirements and come back to you with a proposal within 24 hours.
Leave your details and we'll call you back at a time that suits you.
We've received your request and will call you back at your preferred time. If it's urgent, email us at info@bydesignuk.co.uk