Prototype Sprint
A running demo of your idea's hardest screen
Built for: People who need to show it to someone before they can fund it
Your riskiest screen or flow, built for real and deployed to a link you can send to a partner or a bank — not a mockup. Pick the part that decides whether the whole thing works, and find out for €600 instead of €6,000. Half comes off a build you commission within 30 days.
Prototype Sprint
One core screen or flow, running and deployed on a shareable URL.
- Estimated hours
- 12 h
- Rate
- €50/h
- Delivered in
- 1 week
- Starting
- October 2026
- The one screen that carries the most risk, built for real
- Realistic sample data, so it demos without disclaimers
- Deployed to a URL you can send to anyone
- A short written note on what it proved and what it didn't
- The code, on a repo you own
- Accounts and login
- A backend or real data storage
- Store submission
- Anything past the one agreed screen
- A Spec Sprint or an equivalently clear brief
- Sample data, or permission to invent it
Things I've already shipped that this leans on.
Gunpla Lab
Web appBuilt to settle one question before anything was stacked on top of it: does the core sensation work at all. That is what a prototype is for.
See it in the work →Chronomap
Mobile appScrub 4,000 years and watch borders morph. Built to answer 'can that even be done smoothly' first.
Read the case study →Not sure this is the right one?
Then don't order it yet. A €300 Spec Sprint gets you a written, fixed-scope plan with the hours in it, and the whole €300 comes off whichever package we land on. That's the honest order to do this in.
40% deposit, 40% at the agreed midpoint, 20% on handover. All prices ex. VAT. Dutch customers pay 21%; EU businesses with a valid VAT number are invoiced at 0% under the reverse-charge rule.