Thanks for bringing this up. In fact, we also chose a "opt in" upgrade, where you pay after your trial is up. I'm of the opinion that "opt out" trials are a dark pattern. That being said, we realize the wording in the survey can be off putting but we think it's the right way to communicate expectations from the beginning and in the long run.
vertis|5 years ago
I agree that the "opt-out" is not great, but I would change it to just a warning "This is paid software, after the trial you will need to subscribe".