Message Testing
Paste the subject lines and openers you are already weighing. Simulated, census-grounded respondents on a calibrated panel rank them and tell you which segment preferred them.
Message tests report stated preference, not clicks or conversion. Verbatims are qualitative.
Every study is calibrated against published survey data before it reaches you. On the calibrated 50-state benchmark, the average miss is 7.07 points on the best 80% of 1,521 scored questions, and 10.02 points across all of them.