There is no such thing as a good email app, technically speaking. Even the best one in the world is still, well, an email app, and that means it delivers you the endless stream of notifications, newsletters, spam mailings, deals, sales, invitations, requests, and obligations that take up your time and sap away productivity.
Of course, you still need an email app — but if you’re going to have to deal with email, it had better be fast. Whether on iOS or Android, a good email app has to make loading emails, refreshing your inbox, replying, archiving, deleting, unsubscribing, and more as quick and as seamless as possible.