I stumbled across this gem weeks ago while browsing the internet for anything to replace my beloved Sparrow client. I had beta tested this and watched it evolve from buggy to stable in a matter of weeks due to very rapid updates from the developer. Bloop S.R.L. is committed to providing a quality product and works around the clock to accomplish that which make this an insta-buy for me. The design is original, functional and beautiful. The application allows you to choose between a few different themes for composing a message and viewing your emails. It is very configurable to everyone’s needs or wants so it does not force a workflow on anyone. And at $2 compared to Sparrow’s $10, this comes in as a bargain. In summary, AirMail is packed with so many features and its price make it accessible, there is no reason to not buy just to see if it works for you. If this came out before Sparrow was abandoned, I would have used it instead anyway so kudos to Bloop for making an excellent product and filling a huge need.