The AI for user testing
AI that acts like your user.
Instant testing of your designs.
Tespr simulates user behavior, emotion, and decision-making
to give you instant insights on your designs!
60%
Companies only use prototypes for internal testing
32%
People leave a brand they love after one bad experience
85%
Usability problems found by testing with just five users
100x
Often the cost to fix after delivery, vs during design
Sources: McKinsey, 2018, PwC, 2018, Nielsen Norman Group, 2000, Boehm & Basili, 2001
Research often gets stuck in fast paced startups.
Tespr allows teams real-time, quick AI persona feedbacks on designs
From Figma prototypes to live websites and screenshots
Actionable insights
Test activity
First impression
Understood it's a tool for teams within seconds, from the headline. From screen 1.
Persona0:05
Hesitated on pricing
Wasn't sure what counts as a seat before picking a plan. From screen 2, 3.
Usability0:31
Fix suggested
Explain seats next to the price, where the question comes up. From screen 2.
Recommendation2:48
Report ready
3 issues and 4 fixes, ranked by how much they get in the way. From screen 1, 2, 3.
Report2:52
See how users actually behave
Built for
every use-case
Whether you’re testing flows, validating ideas, or finding usability issues, Tespr adapts to how you work.
User Testing
See how real users would behave. Get instant insights
User Testing
See how real users would behave. Get instant insights
See how Tespr compares
Whether you’re testing flows, validating ideas, or finding usability issues, Tespr adapts to how you work.
Time to run a small usability study
Teams testing more than once a design cycle
Incentive for a 60-minute consumer interview
Sources: Nielsen Norman Group, 1998, Tespr early user tests, Great Question, 2026
How Tespr works
Run quick, reliable user tests in four simple steps.
Create a persona
That matches your user’s traits, goals, and behavior
Upload your designs
Add your screens, prototypes, or website links for instant evaluation
Choose task goals
Set what you want the persona to do
Get AI user insights
Watch the persona behave like a real user and get clear, actionable findings
FAQ
Tespr is an AI user testing platform. AI personas try your website or designs like real users and report where they hesitate, get confused or give up, with prioritized fixes in minutes.
You describe a persona and a task. The persona tries the task on your page or designs, simulating user behavior, emotion and decision-making, and Tespr writes a report on where it hesitated, got confused or gave up, with recommendations.
Public web pages, and design images such as mockups or screenshots (up to 6 per test, in the order a visitor sees them). In the app you can also test Figma prototypes. Pages behind a login and local addresses can't be tested.
No. AI personas remove recruitment and scheduling, so teams can test several times per design cycle.
A report takes a few minutes to build.
Tespr is invite-only for now. Join the waitlist and you'll get an email once you're approved. If you've been invited, sign in with the email your invite went to.
Yes, a free account includes 5 reports and 5 questions to each report's persona.
Yes, from any MCP client, including Claude, Claude Code, Codex, Cursor, VS Code and Windsurf. Connect https://tespr.vercel.app/api/mcp; no API key is needed. Reading a report needs an invited Tespr account, and an unclaimed report link lasts 7 days.