Other than not requiring a second email address linked to their service, being covered by German rather than Swiss law, actually fighting back against information requests, and not sucking up to the Chinese Communist Party, Tuta is probably fairly similar. Those differences, though, are persuasive.
How does Tuta compare to Proton on the root complaint of this post?
https://tuta.com/blog/transparency-report
Other than not requiring a second email address linked to their service, being covered by German rather than Swiss law, actually fighting back against information requests, and not sucking up to the Chinese Communist Party, Tuta is probably fairly similar. Those differences, though, are persuasive.