UI/UX Design
Test Your Idea Before You Build It.
We turn concepts, flows and screen designs into clickable prototypes you can test with users and share with stakeholders before development budget is committed.
Overview
What Prototyping covers.
A prototype is an interactive model of a website, app or feature that looks and behaves enough like the real thing for people to click through it. It lets you see whether a flow makes sense, gather feedback from users and agree direction with stakeholders while changes are still quick and inexpensive to make.
Rankbrain matches the fidelity of the prototype to the question being asked. Early concepts may only need simple linked wireframes, while investor demos or usability tests may need realistic, high-fidelity screens. We build prototypes in Figma, plan test scenarios around your riskiest assumptions and feed what we learn back into the design.
Problems we solve
What this fixes.
- 01
Expensive rework after launch
Flows that seemed clear on paper turn out to confuse users once they are built.
- 02
Stakeholders cannot picture the idea
Static documents and descriptions make it hard to agree on direction or secure buy-in.
- 03
Unclear requirements for developers
Without an interactive reference, engineers have to guess how screens connect and behave.
Scope of work
What’s included.
Clickable prototypes that let you test flows and ideas with users before development begins.
- 01
Flow definition
Choosing the journeys and scenarios the prototype needs to demonstrate or test.
- 02
Low-fidelity prototypes
Linked wireframes for quickly exploring structure and comparing alternative approaches.
- 03
High-fidelity prototypes
Realistic, on-brand screens with transitions and interactions for testing and demos.
- 04
Usability testing
Task-based sessions with users to see where the flow works and where it breaks down.
- 05
Iteration
Updating the prototype based on findings and retesting the changes that matter most.
Benefits
What it can do for your business.
Ideal for
- Startups validating an MVP concept
- Product teams testing a new feature
- Founders preparing investor or sales demos
- Businesses comparing redesign directions
Reduced build risk
Testing flows before development can catch usability issues while they are cheap to fix.
Faster alignment
A clickable model helps stakeholders, investors and teams agree on what is being built.
Clearer handoff
Developers can see exactly how screens connect, which can reduce misinterpretation.
How we deliver it
A clear, practical process.
- 1
Scope
Agree the assumptions to test and the flows the prototype must cover.
- 2
Build
Create the prototype at the fidelity the questions require.
- 3
Test
Run usability sessions or stakeholder reviews and capture observations.
- 4
Refine
Update designs based on findings and prepare them for development.
Related services
Works well alongside.
- UI/UX DesignUX ResearchUser interviews, analytics review and usability testing that show where and why people struggle.
- UI/UX DesignApp DesignMobile and web app interfaces, from user flows and onboarding to dashboards and data-heavy screens.
- Custom SoftwareSaaS DevelopmentMulti-tenant SaaS products from MVP to scale, with billing, auth and dashboards included.
Questions
Prototyping questions, answered.
What is the difference between a prototype and an MVP?
A prototype simulates the experience without working code, so it is quicker to change. An MVP is a functioning product. Prototyping first can help shape what goes into the MVP.
Do prototypes need to be high fidelity?
Not always. Simple wireframe prototypes are often enough to test structure and flow, while high fidelity is useful for testing visual details or presenting to stakeholders.
Do you test prototypes with real users?
Yes, where the project allows. We plan tasks around your key assumptions and observe how participants move through the prototype.
Can the prototype be handed to our developers?
Yes. The Figma files include the screens, components and interaction notes your developers need to build from.
Ready to talk about Prototyping?
Tell us about your business and goals, and we’ll recommend a clear, practical plan.