Say goodbye to Google or Apple Contacts: From now on you can use your Tuta Contacts to start a chat or make a call!
With this exciting update you can use your encrypted Tuta Contacts as your main phone book. Tuta makes sure that all your contacts are stored securely, and you can easily sync them to all your mobile devices
https://tuta.com/blog/full-device-contact-integration-is-here
more here: TutaCrypt
@hallmarc
Tuta mail Vrs Protnmail
https://cybernews.com/secure-email-providers/tutanota-vs-protonmail/
these 2 services offer the same kinda services - they are pretty similar, except ProtonMail supports PGP which works with people who don't use ProtonMail, whereas Tutanota uses its own encryption which only works with Tutanota users.
more here on Tuta encrytion
https://tutanota.com/encryption