SprintBuilt — UK App Developer
Turn your app idea into a real, working prototype in 7 days. Fixed price from £2,000. Based in the United Kingdom.
SprintBuilt — Independent App Development Service
Founder & Developer: Andy Clarke
📍 United Kingdom
📞 Office: 0161 399 0318
📱 Mobile: +44 7759 002601
📧 Email: hello@sprintbuilt.com
🌐 Website: https://sprintbuilt.com
💬 WhatsApp: wa.me/447759002601
🗓️ Book a free call: calendly.com/andyclarke-andyacd3/30min
SprintBuilt is a UK-based independent app development service. We turn app ideas into real, working prototypes in 7 days at a fixed price from £2,000. No agencies, no account managers — you work directly with Andy Clarke, the developer building your product.
Services: App Prototype (£2,000 · 7 days) | MVP Development (£6,000–£10,000 · 2 weeks)
Area served: United Kingdom | Opening hours: Mon–Fri 09:00–18:00
App Prototype in 7 Days — £2,000
SprintBuilt delivers a fully working app prototype in 7 days from your brief — not a Figma mockup, not a wireframe, but a real clickable product. Up to 5 core screens, mobile or web, with full source code handover. Built using React, React Native, and Node.js.
Ideal for validating your idea with real users, pitching to investors, or getting a working product in front of customers fast.
MVP Development — £6,000 to £10,000
The MVP Sprint delivers a production-ready app with authentication, database, backend API, and up to 10 or more screens — deployed and live on your domain in 2 weeks. Everything you need to acquire your first real customers and start iterating.
About Andy Clarke — UK App Developer
Andy Clarke is a UK-based independent app developer specialising in rapid prototyping. He has hands-on expertise in React, React Native, Node.js, and Supabase, and has built fitness tracking apps, personal branding platforms, construction site management tools, and more — all within one-week sprints.
Andy brings both technical depth and product thinking. He does not just build what you ask for — he builds what your users need. All communication is direct, all pricing is fixed, and all code is yours on delivery.
The 5-Day Build Process
Day 1 — Brief & Scope: We agree exactly what to build, in writing, with no ambiguity.
Day 2 — Design & Flow: Screens, user flows, and core UI designed for your use case.
Days 3–4 — Build Sprint: Rapid development. Fully functioning app, not just mockups.
Day 5 — Test & Polish: Bug fixes, final tweaks, and prep for handover.
Day 7 — Delivery: Live prototype delivered with code and documentation.
What Apps Can SprintBuilt Build?
SprintBuilt builds mobile apps for iOS and Android via React Native, web apps with React, and full-stack applications with backend APIs and databases. Common project types include SaaS tools, marketplace prototypes, fitness apps, B2B dashboards, consumer apps, and internal business tools.
Why Choose SprintBuilt?
Working with an independent UK app developer means faster decisions and direct communication with no agency markup. Fixed pricing means the budget is agreed upfront — no billing surprises. You own all code, assets, and IP on delivery with no lock-in.
Frequently Asked Questions
- What does SprintBuilt do?
- SprintBuilt is a UK-based app development service run by Andy Clarke. We turn your app idea into a real, working prototype in 7 days for a fixed price from £2,000. You work directly with the developer — no agencies, no account managers.
- How much does it cost to build an app prototype in the UK?
- SprintBuilt charges a fixed price of £2,000 for a working app prototype delivered in 7 days. A full MVP with authentication, database, and backend costs £6,000 to £10,000 and is delivered in 2 weeks.
- How long does it take to build an app with SprintBuilt?
- A working app prototype is delivered in 7 days. A full MVP is delivered in 2 weeks. The process starts with a Day 1 brief and scope, then design, build sprint, testing, and delivery.
- What exactly counts as a prototype?
- A functioning app — not a mockup or Figma file. Users can click through it, enter data, and experience your core idea. It is built to show and test, not necessarily to scale to thousands of users.
- Do I own the code after the project?
- Yes. All code, assets, and IP are fully yours on delivery. No lock-in, no ongoing fees unless you choose to continue development.
- What tech stack does SprintBuilt use?
- Typically React or React Native for the frontend, with Node.js or Supabase for the backend. Andy recommends what fits your use case — not just what he prefers.
- How do we communicate during the build?
- Daily updates via Slack or WhatsApp — your preference. You will see progress each day, not just at the end. No radio silence, ever.
- Is SprintBuilt based in the UK?
- Yes. SprintBuilt is run by Andy Clarke, a UK-based independent app developer. All communication is in English and billing is in GBP. Contact by phone on +44 7759 002601 or by email at hello@sprintbuilt.com.
- Can Andy continue working after the prototype is delivered?
- Yes — many clients move from prototype to MVP, or want ongoing feature development. A retainer or continued sprint work can be arranged after delivery.
- What if my idea changes mid-week?
- We lock in the scope on Day 1 to protect the timeline. Small tweaks are fine; significant pivots require a new scope agreement. This keeps the one-week guarantee solid.
- Can you build both iOS and Android apps?
- Yes — using React Native, a single codebase covers both iOS and Android. SprintBuilt delivers a real cross-platform mobile app prototype within the 7-day sprint.
- Do I need a technical background to work with SprintBuilt?
- Not at all. The process starts with a plain-English brief. Andy handles all technical decisions. Many of SprintBuilt's best clients are non-technical founders.
- Do you work with clients across the UK?
- Yes — SprintBuilt is fully remote-first. Andy works with founders and businesses across London, Manchester, Birmingham, Edinburgh, Bristol, Leeds, and beyond.
- How do I get started with SprintBuilt?
- Book a free 30-minute scoping call via Calendly or WhatsApp at +44 7759 002601. No obligation — if it is not the right fit, Andy will tell you honestly.
What Clients Say About SprintBuilt
"Andy delivered a fully working app in under a week. Clear daily updates, clean code, and it was good enough to take straight to an investor demo. Exactly what we needed."
"We'd worked with agencies before — the quotes were 10× higher and the timelines were months. SprintBuilt delivered a real working prototype in 7 days at a fixed price."
"The daily WhatsApp updates made it feel totally transparent. No surprises, no scope creep. We went from brief to live prototype in exactly one week."
Service Areas — UK App Developer
SprintBuilt provides independent app development services across the United Kingdom, including London, Manchester, Birmingham, Edinburgh, Bristol, Leeds, Sheffield, Glasgow, Liverpool, Newcastle, Nottingham, and all remote-first clients worldwide. All projects are billed in GBP and delivered in English.
Contact: +44 7759 002601 · hello@sprintbuilt.com · sprintbuilt.com