It's not even one month after launching Mailbrew, and we've crossed the 100 paying subscribers mark ($900 MRR).
The split is almost exactly 50/50 yearly and monthly licenses. We're showing yearly billing by default in our upgrade page, so users see $8/m computer pricing by default.
We also think the no-credit-card trial of 21 days is working nicely, and we might experiment with 30 days soon.
Shoot some questions if you want to know anything!