App designs that don't look AI-generated. Before the pitch, not after the wince.
Bender turns one line into a complete, themed, clickable mobile concept, with one design system locked across every screen so the set reads like one team authored it. Then AI users walk the flow and pin the friction, so you catch what reads as slop before the people you want to impress do.
Week 19
On trackStronger.
Volume
12,840kg
Sessions
5
this week
Streak
14d
personal best
Today · Push day
Bench press
4×10
Incline DB
3×12
Tricep dips
3×15
Start workout
→Three steps. No weekend lost to Figma.
Describe
One line: what the app is and who it's for. No brief, no Figma file.
Generate
A complete, themed, clickable concept. Real screens you can tap through, not flat mockups.
Triage
AI users walk the flow and surface the dead taps and missing states, before your client does.
Every one of these is a real screen.
Wellness to finance, dark moods to soft cream. Each one started as the single line shown beneath it, themed end to end and ready to open and edit. No two come out the same.
Watch AI users walk your flow and tell you where it breaks.
Pick a persona, send them through your screens, and read the evidence: the dead taps, the missing states, the step where the task quietly fell apart. The same engine also checks every screen for the AI tells (glow, glass, gradient text) before you ever see it. You catch what reads as slop before a client does.
Rushed commuter
One thumb · 4G · in a hurry
First-time senior
New to the app · large text
Review & pay
2 items · Free delivery
Cedar tote bag
QTY 1
Linen scarf
QTY 1
No promo-code applied confirmation
The same screen, cleared to pitch.
You don't just see the dead tap. Bender writes the fix: wire the button, fill the missing state. Then it re-runs the walk to confirm the break is gone, and the glow, glass, and gradient-text check comes back clean. Same checkout, now passing, already cleared of the tells before you walk in.
Wired “Pay” → order confirmation
was: dead tap, no handler
Added the promo-applied state
was: missing state
Review & pay
2 items · Free delivery
Cedar tote bag
QTY 1
Linen scarf
QTY 1
Promo SAVE10 applied
You walk away with more than screens.
Case closed. You're holding more than mockups: three things that ship with every Bender concept, and nowhere else.
Synthetic User Testing
Test with AI users before real ones.
AI personas (a rushed commuter, a first-time senior, a power user, a distracted parent) tap through your clickable prototype attempting real tasks. You get task-success rates and friction pinned to the exact screens where users got stuck.
No other generator pressure-tests its own output or checks it for the AI tells before you see it. Usability tools charge $99/mo for this on Figma files.
Screen States
Every state of every screen, one click.
Loading skeletons, empty states, and error states generated to match each screen exactly. It's the unglamorous 80% of UI work that other tools skip and developers always ask for. States ship inside your code and screenshot exports.
Pro adds offline and content-stress states.
Launch Reel
A demo video, not just a demo.
Turn your prototype into an animated walkthrough: device frame, tap ripples, written captions. Export it as a video you can post to X or LinkedIn the moment your screens exist.
Rendered in your browser in seconds. Nothing to install.
Questions developers ask.
Straight answers on what you get, what it costs, and how it fits the way you already build.
Start your first concept.
One line in. A complete, themed mobile concept out: generated, checked for the AI tells, walked, and cleared to pitch.