plase introduce a competitive pricing, at least 5$ / € etc.
you would eventually have more money and could hire more programmers for improving this software in shorter time. the market is there. there is no good mail app for mac os (the mail.app in mac os is crap, totally crap) so you have chances to get #1 very quick. every one needs this who misses features and stability in mail.app. the guys who miss your app would spend also at least 5$ (i would have paid also 100 $ without thinking about it)... just because ... if your app is more mature (e.g. folder management, folder collapse, search improvements etc.) this IS THE ONE AND ONLY BEST FUCKING MAIL CLIENT ON THE MAC.
Froilan Irizarry commented
I agree completely. A friend of mine made a study on pricing for his iPhone app and found that the sweet spot was around $4.99. I don't see a reason why Airmail couldn't be in that category.