There are two big problems for me, but I can live with them:
-Missing Calendar
-Missing a Driver app (could be web), like outbox or google drive.
1. A decent ProtonMail alternative, Tutanota(also privacy focused), has a Calendar feature(not trying to steer you away from ProtonMail, both are very good services and I use both):
http://i.imgur.com/bAGAGoM.png2. I personally currently use Dropbox. Not a privacy-friendly alternative to Google Drive, but yea. Still looking for a better alternative that doesn't require me to sacrifice that much in terms of usability.
