For those not into mega-customization, the price and time commitment may be a bit much. If your email is a bottomless well of time-suck, though, it helps you plow though messages more rapidly. It not only works with Gmail, IMAP/POP3 and Exchange clients, but is also compatible with Google Drive, Dropbox, Wunderlist and other productivity apps. Other features let you star items from the lock screen, instantly create a PDF from an email and load remote images, usually with just a few touchscreen presses. If all of that is worth $4.99 to you, Airmail 1.1 is now available on the App Store.