Tuta just launched their encrypted cloud storage in closed beta, completing a compelling zero-knowledge workspace with email, calendar, contacts, and drive. Here's my first look at what's there, what's missing, and why this is bigger than just another cloud provider.
Proton drive’s docs are just starting to be good enough that I would recommend them, but they are far from feature parity with google’s. Just try to make a PDF of a word doc, copy cells that are used in equations to a different sheet, or create a presentation.
Tuta could be a real contender if they wanted to be.