Any content. Hundreds of perspectives.
Paste anything you're building. A skeptical simulated audience tells you what lands and what doesn't.
Test types
Four ways to test a decision. One brief at the end.
Pick the test that matches the decision in front of you. Each one ends in the same inspectable decision brief.
Prototype test
Paste a publicly reachable prototype URL, or upload screenshots in Page mode. 25 simulated participants react to what is clear, what is confusing, and where they expect to get stuck.
Usability test
Paste any live URL. Simulated visitors scan the rendered page and report what they noticed, what they trusted, and what objections they had.
Qualitative comparison
Give two written versions. Simulated customers react to both, state a preference, and explain the trade-offs. This is qualitative decision support, not a forecast of production A/B lift.
Survey
Pose a question or show content. Participants respond in their own words. Perfect for value proposition validation, pricing reactions, feature prioritization.
~78%
winner direction across 23 published A/B tests
6
published studies benchmarked
3.5M+
participants in the source studies
Pricing
Buy credits once. Run whenever.
1 credit = 1 persona evaluation. Credits never expire. Credit packs from $29 — first test free, no account needed.
Also available as an MCP server for Claude Code, Cursor, and Windsurf. Learn more