UI Critic by Usercall – surfaces hidden user assumptions in UI screenshots

Summary: Upload 1–3 UI screenshots to receive annotated critiques that reveal hidden user assumptions and associated risks before launch. It highlights potential issues not visible in the design itself, helping identify risky assumptions early.

What it does

It analyzes UI screenshots to explicitly state user assumptions and the risks of those assumptions being incorrect. The tool provides a pre-mortem critique prior to formal user testing.

Who it's for

Designed for designers and product teams seeking to identify hidden risks in UI before investing in user testing.

Why it matters

It helps catch unchecked user assumptions that can cause problems, reducing risk before development and testing.