Test designs from wireframe to release.

Present Data, Not Opinions

Design conversations often become debates based on personal preference.

Custom Tester gives you measurable results throughout your design process, helping teams make decisions based on evidence instead of assumptions. Whether you're reviewing an early concept or preparing for launch, you'll have quantifiable insights to support every design decision.

AI Personas Built Around Your Customers

Create intelligent personas in minutes using information about your real customers.

Each persona simulates realistic behaviors, goals, motivations, and workflows so you can evaluate designs before involving actual users. The result is faster iteration with feedback that's grounded in realistic customer expectations.

Test Every Iteration

Don't wait until your design is polished before gathering feedback.

Upload new versions as often as you like and continuously validate improvements. Every iteration builds confidence while reducing costly changes later in development.

Seamlessly Transition to Real Users

AI testing isn't the finish line, it's the starting point.

When your design is ready, Custom Tester lets you invite real participants from your customer base to complete the same testing flows you've already refined with AI personas.

No rebuilding. No duplicated work. Just better validation.