Airmail might be the perfect email app for your iPhone
 

Airmail is a well-known, well-received email client on Macs. But when you have a huge screen, keyboard and mouse, a good email app on the desktop doesn't have to try so hard. However, making a good email app on a smartphone is a whole different can o...

http://www.engadget.com/2016/02/14/airmail/