I’ve been looking into this new email service. It looks promising, yet the blog posted by Tutanota kind of worries me: https://tutanota.com/skiff-mail
Their servers are run in AWS? I really don’t want to have my unencrypted emails in the hands of Amazon. And it is also mentioned that they’re US based. I mean, Germany is also in the 14 eyes, but US is a much much more anti-privacy country.
The reason Proton is more expensive is because you get access to more of their other services too, like cloud storage, vpn, calendar and now password manager. It’s really worth it in my opinion, services are mature and stable. Although not sure what you’re referring to with “shady decisions in the past”?
But if all you need is a mail provider then it seems like you’re already satisfied enough with Tutanota.
I just made the switch to proton in the last week and so far I’m happy with it, even decided to pay for a year of service. The one feature I’m surprised to see missing from the android app is conversation view. The web app has it, but mobile doesn’t. My personal email is very minimal so I don’t really care, but for heavy users this might be an issue.