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.
I know about this alternative, However I prefer protonmail.
I would like to pay their price and have access to calendar and drive. I am impatient as well, as I am a long time proton user, and I saw all those dates and delays.
Calendar is very important to me. Recently Google killed inbox, which handled all my agenda, and I am looking for an alternative.
This is the right time to move to protonmail, as gmail Just removed the app k used the most. I will reorganize my things in a privacy friendly environment.