Test headlines, value props, and claims with AI personas
The difference between a 2% CTR and a 5% CTR is often the message. TestSynthia lets you pre-test messaging with market-realistic personas before you buy a single ad impression.
Category
Messaging
Steps
4
Panels
3
Time
10 min
A cybersecurity startup launching a compliance automation tool tested three messaging angles with 800 IT admin and security engineer personas: 'Prevent breaches before they happen' (fear-based), 'Reduce security review time by 70%' (outcome-based), and 'Trusted by Fortune 500' (authority-based). The outcome-based message won with 59% purchase intent. Fear-based scored 41% - admins found it 'alarmist and vague.' Authority scored 38% - SMBs didn't care about Fortune 500 logos. But segmentation revealed a critical split: SMBs under 100 employees preferred outcome messaging (64%) while enterprises over 500 preferred authority (57%). The founder ran segmented campaigns and saw a 2.8x improvement in demo request rate over their generic fear-based control.
Their creative team loved fear-based messaging but it had a 1.4% CTR in a $14K LinkedIn test
They had no way to know which message resonated with which company size before spending
By the time they had ad data, they had already burned through 50% of their launch budget
They assumed one message would work for all IT buyers - but preferences split sharply by company size
Wrote 3 messaging angles
They created three distinct value propositions: fear-based ('prevent breaches'), outcome-based ('reduce review time 70%'), and authority-based ('trusted by Fortune 500'). Same product, same price, only the message changed.
Targeted IT buyers by company size
They ran two simulations: one with IT admins and security engineers at SMBs (under 100 employees) and one at enterprises (500+ employees).
Measured appeal and intent by segment
TestSynthia generated 800 responses showing message appeal scores, purchase intent, and verbatim reactions segmented by company size.
Ran segmented campaigns
SMBs got outcome messaging (59% intent). Enterprises got authority messaging (57% intent). Demo request rate improved 2.8x over the generic control.
“Which of these messages makes you most interested in trying this compliance tool?”
“How much do you trust a cybersecurity product described as 'prevents breaches' vs 'reduces review time'?”
“What would make you click an ad for a security automation tool while scrolling LinkedIn?”
“Which message makes you feel most confident this product actually works?”
The creative team's favorite message - 'Prevent breaches before they happen' - scored lowest at 41% intent and was called 'alarmist' by IT admins. The message they considered 'too soft' - 'Reduce security review time by 70%' - won with 59% intent. Company size segmentation revealed two winners, not one.
Found the winning message before spending $14K on a live ad test
Discovered message preference splits sharply by company size, not one-size-fits-all
Improved demo request rate 2.8x by running segmented creative instead of generic messaging
Tested 3 messages for less than the cost of one LinkedIn click
Use Case
Know Which Message Converts Before You Spend
Steps
4 steps
Panels
3 recommended
Time
10 minutes
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Results in minutes.