A TESTING TOOL FOR COPYWRITERS
Compare the angle, then refine the wording.
Start with two distinct promises that the product can support. Once you choose an angle to explore, test smaller wording changes with the same study settings.

Example messages.
A $29 water leak sensor sits under a sink or water heater and sends a phone alert when it detects water.
Get a phone alert the moment water reaches the floor under your sink. $29.
Know what's happening under the sink even when you're away. $29 leak sensor with phone alerts.
Run a clear comparison.
Use the same audience and product facts for both versions. Choose a question before running: clarity, credibility, interest or preference.
Head-to-head mode shows both texts together. Independent mode scores each separately against the same scale, then compares the scores for each profile.
What the results mean.
Small score differences may reflect model sensitivity. Treat a close result as a reason to revise or gather human feedback.
The survey supplies observed profiles. AI generates the reactions to your text. The included records are unweighted, and the results are not responses collected from people.
Frequently asked questions
How do I start?
Try a free study or open Studio to choose your audience. Paste both texts, add relevant context and run the study.
What should I do with a close result?
Inspect individual responses and revise the contrast. Small score differences are not a significance test. Use real audience feedback or a live experiment to validate consequential decisions.