High-fidelity interactive mockups
Code-powered interactive prototypes
Moderated testing sessions
Developer handoff documentation
Bridging design and engineering
Prototype in context presentation
Free discovery call · 24hr proposal · Fixed-price quote.
Start Your Project →A clear, milestone-based process with no surprises.
Understand the hypothesis being tested, the target audience, and what specific questions need answers.
Define 3 critical user flows max. Anything outside those flows is out of scope — by design.
Fast, disposable sketches for stakeholder alignment before pixels matter.
Figma interactive or coded prototype — realistic enough to get genuine user Reactions.
5–8 moderated sessions. We observe, record, and synthesise findings into prioritised insights.
Apply key findings. Produce investor/stakeholder demo version with slide deck if required.
Rapid prototyping means learning in weeks, not burning budget on months of dev.
We identify the riskiest assumption and design the prototype to test exactly that.
Our prototypes regularly feature in Series A/B pitch decks. Visual quality matches top studios.
Every prototype follows production architecture patterns. Building for real is faster after us.
"Used the Figma prototype to run a £40k paid ads experiment before building anything. Validated PMF in 3 weeks. When we hired Nexcode to build the real product, the prototype became the spec."
"Tested 3 onboarding flows. User testing showed our original idea ranked last. The winning flow doubled our trial-to-paid conversion. Best ROI of any spend last year."