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Whitepaper

The state of
mobile app prototyping.

We surveyed 500+ product managers. Here's what changed in mobile prototyping — and what didn't — heading into 2026.

The definition

A prototype is
a question, made tangible.

Mobile app prototyping is a digital sketchpad — a clear preview of how an app looks and behaves, without committing engineering effort. The point isn't the artefact; the point is the answer.

Why prototype

Six reasons
to prototype first.

01

Validate ideas early

Get the concept in front of users before you write a line of code.

02

Iterate at design speed

Tweak Figma, hot-reload the build. No engineering bottleneck.

03

Real, functioning previews

Stakeholders interact with the prototype like it's the real app.

04

Customer-validated UX

Run usability tests on something that feels native, not a slideshow.

05

Slash time and cost

Cut weeks off the discovery phase — no specialised prototyping team.

06

Find flaws before launch

Catch broken flows and broken assumptions while they're cheap to fix.

Pick your fidelity

Two kinds.
One answer.

LOW-FIDELITY

Concept testing

Simplified screens. Boxes, lines, intent. Perfect for early ideation — does the flow even make sense? Don't overinvest before you know.

HIGH-FIDELITY

User testing

Full visuals, real interactions, native feel. The version stakeholders can demo and customers can actually use. This is where Bravo lives.

The process

Five steps
to a real prototype.

01

Validate

Run interviews and surveys. Decide there's something worth building.

02

Requirements

Write the smallest set of flows the prototype must demonstrate.

03

Sketch

Rough up the screen architecture and navigation. Pencils, whiteboards, Figma.

04

Wireframe

Tighten the layouts. Lock the hierarchy and primary interactions.

05

Prototype

High-fidelity, native, on-device. The version you actually test with people.

Skip the slideware

Prototype that
actually runs.

Bravo turns your Figma into a real, on-device, native prototype. Test with users tomorrow.