AI-built MVPs and prototypes
From idea to a working product on iOS, Android and web. One codebase, weeks not quarters.
The problem
You have an idea and a deadline, not a dev team. Agencies quote months and a budget you would rather spend on customers. You need something real to show investors and users, built by someone who will not burn your runway.
What you get
- 01A working product on iOS, Android and web from one codebase
- 02Backend and REST API built for the features you actually need
- 03Integrations with the tools your users already run, via OAuth
- 04AI features where they earn their place, such as GPT-based classification
- 05Full source code and deployment in your accounts
- 06A short handover doc so any developer can pick it up
How it runs
- 1Scope call: we cut the idea down to the smallest version that proves it
- 2Fixed scope and a written plan before any code
- 3Build in weekly cycles, with a working demo every week
- 4Test with real users, fix what matters
- 5Handover: code, accounts and docs, all yours
Proof
Questions
How long does it take to build an MVP with AI?
For a focused MVP, expect a first working build within a few weeks and a weekly demo after that. I built Margintall, a B2B SaaS prototype with apps for iOS, Android and web, 32 REST endpoints and 2 accounting integrations, solo between April and June 2026.
Can one developer build an app for iOS, Android and web?
Yes. I use a single cross-platform codebase, so one build covers all three. That is how I built Margintall: iOS, Android and web from one codebase.
How much cheaper is this than an agency?
You pay for one engineer, not a team with account managers and handoffs. On a recent site rebuild, external development cost came out an estimated 88% lower than hiring an agency for the same scope. I quote a fixed scope after a free intro call.
Do I own the code?
Yes. The code lives in your repository and runs in your accounts from day one. No lock-in, no licence fees to me.
What does "AI-built" mean? Is the code any good?
I use AI coding tools such as Claude Code every day to move faster, and I review, test and own every line. AI speeds up the typing. The engineering decisions stay with me. I hold a First-Class BSc in Computer Science from the University of Birmingham.
Can you integrate my MVP with QuickBooks or other business tools?
Yes. I built OAuth-based integrations with QuickBooks and Zoho Books for Margintall. Most tools with a REST API and OAuth follow the same pattern.
Other services
04 / Contact
Have something to build? Book a call.
20 minutes, free. Tell me what you need; you leave with a scope, a timeline and a straight answer on whether I'm the right fit.