After releasing its mail app for the iPhone, Sparrow is back again with another update of its Mac email client. Version 1.6 adds the highly-anticipated support for Pop accounts, giving you a true unified inbox. There's also a handful of minor tweaks and bug fixes that'll make it easier for you to send and receive mail on your Mac. You can see the full list of changes on Sparrow's blog.

Sparrow for the Mac is available from the Mac App Store for US$9.99.