Building on Assumptions
Most product ideas rest on a few untested beliefs. A prototype tests them before they cost you a build.
MVP DEVELOPMENT · UK
Product Prototyping and Validation in the UK
The cheapest time to change a product is before it is built. We design clickable prototypes, put them in front of real users and test demand, so you build the right thing first time. We work with founders and product teams in Milton Keynes, Newport Pagnell, London and beyond.
- UK GDPR compliant
- Works with your tools
- You own the code
REAL CLIENT RESULTS
Trusted by UK Businesses Using Our Product Prototyping and Validation
Numbers from projects we have delivered for UK businesses, from recruitment and accountancy to solar energy and field service software.
58%Less screening timeRecruitment
97%Faster lead responseSolar energy
72%Less time chasing recordsAccountancy
8 wksFrom notes to launchField service software
Areas we cover
Based in Milton Keynes, building AI for businesses nearby in Bletchley, Wolverton, Newport Pagnell, Stony Stratford, Buckingham, Bedford, Northampton and Olney, and across the UK in London, Birmingham, Manchester, Leeds, Liverpool and Lichfield.
IN PLAIN ENGLISH
What Is Product Prototyping and Validation – and What We Do Differently
Prototyping is creating a realistic, clickable version of your product without writing production code. Validation is testing it with real people to see if they understand it and want it. We go beyond pretty screens: we write test scripts, interview real users and run simple demand tests, then tell you clearly what the evidence says.
SOUND FAMILIAR?
Business Problems Our Product Prototyping and Validation Solves
Feedback Only from Friends and Family
People who know you are kind, not honest. We test with people who match your real customers.
Investors Who Cannot Picture the Product
A clickable prototype makes the idea real in a pitch meeting.
Developers Guessing How Things Should Work
Without a tested prototype, developers fill gaps with guesses. A prototype becomes a clear brief.
WHAT WE BUILD
Our Product Prototyping and Validation Services
Discovery Workshop
A session to clarify the customer, problem and riskiest assumptions.
User Journey Mapping
The key journeys through your product mapped step by step.
Wireframes
Quick layouts to agree structure before visual design.
Clickable Figma Prototype
A realistic prototype that looks and feels like the finished product.
User Testing Sessions
Recorded sessions with target users, with findings summarised.
Demand Testing
Landing pages and waitlists that measure real interest before launch.
AI Feature Mock-Ups
Realistic AI interactions shown in the prototype, so users can react to them.
Build-Ready Specification
A prototype and written spec developers can quote and build from.
Find Out What AI Can Automate in Your Business
A free audit shows the tasks worth automating first, with the hours each one should save.
WHO USES IT
Prototyping Use Cases by Department
Prototyping for Sales Teams
Sales tools, quoting apps and customer portals tested with real buyers before you spend on a full build.
Prototyping for Marketing Teams
Landing pages, waitlists and sign-up flows that show whether people want the product before launch.
Prototyping for Customer Support
Self-service features and AI help built into the first version, so a small team can support early customers.
Prototyping for Operations & Admin
Internal tools that replace spreadsheets for scheduling, stock or job tracking, built small and improved quickly.
Prototyping for Finance & Reporting
Billing, subscriptions and simple reporting set up from day one, so you can see revenue from the first customer.
Prototyping for HR & Recruitment
Simple admin areas for managing users, roles and permissions as your first customers bring their teams.
CASE STUDIES
Product Prototyping and Validation Results: Client Case Studies
Real projects, real numbers. Client names are kept private where they asked us to.
Field Service SaaS: Launched in Eight Weeks, 38% Less Admin
8 wksFrom notes to launch
24%Trial-to-paid conversion
Vantro went from a founder’s notes to paid software for UK trade businesses, with scheduling, quotes and invoices built in.
Read the case studyRecruitment: 58% Less CV Screening Time with an AI Platform
58%Less screening time
92%CVs imported automatically
A specialist UK recruitment agency now has CVs pulled in, ranked and explained by AI, so recruiters spend their day on calls instead of reading.
Read the case studyAccountancy: 72% Less Time Chasing Client Records
72%Less time chasing records
29%Faster year-end turnaround
A UK accountancy practice replaced email chasing with a portal that sends its own reminders and collects documents in one place.
Read the case studyGet Similar Results for Your Business
Tell us which job takes your team the most time. We will show you what can be automated.
HOW WE WORK
How Our Product Prototyping and Validation Process Works
AI Opportunity Audit
We talk through the idea, the customer and the problem, and agree the one or two things the first version must prove.
Roadmap & ROI Forecast
You get a scope, a fixed price, a timeline and a list of what is deliberately left out of version one.
Build & Integrate
We design and build in weekly sprints, with a working link you can click through and share at every stage.
Test, Train Your Team & Launch
We test with real users, fix what they find, set up hosting and analytics and launch the product.
Monitor, Optimise & Scale
We watch how people use it, help you read the numbers and plan version two around what customers actually do.
TECHNOLOGY
AI Models & Platforms We Work With
We are not tied to one vendor. We choose on accuracy, cost and where your data needs to live.
AI Models (OpenAI GPT, Claude, Gemini, Llama)
Added where they make the product better, with costs per user worked out before launch.
Product Stack (Next.js, React, Node.js, Python)
Modern, widely used tools, so any good developer can pick up the code later. Hosted on Vercel, AWS or Azure.
Payments, Auth & Analytics
Stripe, Auth0, Clerk, Supabase, Firebase, PostHog and Google Analytics, so the basics are done properly.
WHY CODECRACKERS
Why UK Businesses Choose Us for Product Prototyping and Validation
Custom-Built AI, Not Expensive Off-the-Shelf Subscriptions
Your product prototyping and validation is built for your processes and you own it. No per-seat licence that grows every time you hire.
Works Inside Your Existing Tools
We connect to the CRM, inbox, help desk and files your team already uses, so nobody has to learn a new system to get the benefit.
UK GDPR-Compliant AI Systems
Data stays in UK or EU hosting where needed, access is limited to what each part needs, and we document how personal data is handled.
ROI-First Approach with Measurable Results
Before we build, we agree what success looks like in hours saved, response time or revenue, and we report against it every month.
PRICING
Product Prototyping and Validation Packages & Pricing
Clear starting prices. Every project gets a fixed quote after the free audit, before any work begins.
Free Product Prototyping Audit
A 45-minute call and a short written report: where product prototyping and validation would help, what it would cost and the likely payback.
Book my free auditMost popular
90-Day Prototyping Build Package – From £3,000
Audit, roadmap, build, testing, training and launch of your first solution, with a fixed price agreed before we start.
Get a quoteMonthly Product Prototyping Retainer – From £500/month
Monitoring, improvements, new features and support every month, with a report on usage, accuracy and time saved.
Get a quoteBook Your Free Audit
45 minutes, no obligation. You keep the report either way.
INDUSTRIES
Industries We Build Prototyping For
Sectors where we already have live client work.
- RecruitmentCV screening, candidate ranking and shortlists.
- Solar and renewable energyLead capture, instant replies and survey booking.
- Accountancy and financeDocument collection, reminders and client portals.
- Trades and field serviceScheduling, quotes, invoices and job admin.
- Ecommerce and retailProduct data, customer queries and order updates.
- Health and wellnessBooking questions, product advice and follow-ups.
CLIENT REVIEWS
What Our Clients Say About Our Product Prototyping and Validation
“Our recruiters used to spend most of the day downloading and reading CVs. Now the platform pulls them in, ranks them and explains why, and we just make the calls.”
“We were losing good leads simply because we couldn’t reply fast enough. CodeCrackers connected our ads, website and CRM so every enquiry gets an answer in minutes.”
“Clients upload everything in one place, reminders go out on their own, and we can finally see every deadline coming.”
“I knew exactly what tradespeople needed but had no idea how to build it. CodeCrackers turned my notes into Vantro, and we launched in eight weeks.”
FAQs
Product Prototyping and Validation FAQs
FREE AUDIT
Ready to Put AI to Work? Book Your Free Product Prototyping Audit
Tell us about your business and the work that eats your team’s time. We will reply within one working day with a time for your free audit.
- A list of tasks worth automating
- Expected hours saved and payback
- A fixed quote, no obligation
Book your free audit
Four quick details. No obligation.