Spotify started as an idea for streaming music that turned into a platform used by hundreds of millions of people worldwide. Apps like Spotify and Deezer changed how an entire generation listens to music, discovers new artists, and pays for entertainment — and none of them started as finished products. They started as an idea, a rough sketch of what the experience should feel like, and a decision to actually build it.
If you’ve got an idea for a music streaming app, a niche listening platform, a subscription service for independent artists, or a new spin on playlists and discovery, the hardest part usually isn’t the idea. It’s finding someone who can turn it into working software without disappearing halfway through, blowing the budget, or handing you a system you don’t actually own. That’s the gap By Design UK fills.
Custom platform builds — the kind of infrastructure a Spotify-style app needs, including streaming, user accounts, subscriptions, and licensing-ready architecture — typically range from £18,000 to £650,000+ depending on scope, catalogue size, and features like offline playback or artist tools. For a simpler storefront or merchandise/ticketing add-on tied to your music brand, a Shopify build can start from £499 up to £18,999. We scope every project individually and quote a fixed price before any development starts — no hourly billing, no scope creep, no surprises.
Our platform development service is built around three things most people with an idea actually want: a fixed price agreed upfront, faster delivery through AI-accelerated development practices, and full ownership of the source code once it’s built. It’s your app, your codebase, your business — not ours to hold onto.
Freelancers are often cheaper upfront but come with real risk: no backup if they get busy or disappear, inconsistent quality, and no formal handover of code or documentation. Traditional agencies solve some of that but introduce new problems — slow timelines, opaque day-rate pricing that balloons as the project drags on, and layers of account managers between you and the people actually writing the software. By Design UK sits between the two. You get a proper development team, a fixed price agreed before work begins, and direct access to the people building your app — without the freelancer risk or the agency markup.
We don’t just talk about capability — we run our own platform. Tackly.co.uk is a live, multi-toolkit platform we built and operate ourselves, handling real users and real infrastructure every day. It’s proof that we can design, build, and maintain complex software at scale, not just produce a pitch deck and disappear. Everything we’d apply to a music streaming build — subscription billing, user accounts, media handling, scalable hosting — is already proven in something we run ourselves.
We map all of this out with you before a line of code is written, so you know exactly what you’re paying for and what you’ll own at the end of it. Once your platform is live, ongoing reliability matters just as much as the build itself — our support plans start from £797/month for platform builds (or £299/month for Shopify-based projects), covering monitoring, updates, and fixes so your app keeps running smoothly as your user base grows.
You don’t need a technical background, a co-founder who can code, or a finished business plan to start this conversation. You need an idea and a willingness to see what it looks like as working software rather than a slide deck. We’ll talk through what you’re picturing, give you a realistic fixed-price range, and tell you honestly whether it’s a six-week build or a six-month one. Learn more about how we work on our about page, or go straight to get in touch and tell us what you’re picturing.
No. Most of our clients have no coding background at all. We handle the technical decisions and translate your idea into a working platform, explaining choices in plain English along the way.
Yes. Full source code ownership is included as standard. Once your platform is built, the codebase is yours outright, with no ongoing licence fees to us for using it.
A focused first version can take a few months, while a fuller platform with licensing, payouts, and discovery features may take longer. We agree a realistic timeline and fixed price before work starts.
We build the technical infrastructure to support licensing data, royalty tracking, and artist payouts, but rights agreements themselves should sit with a music licensing specialist or legal advisor.
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