ProtonMail is incorporated in Switzerland and all servers are located in Switzerland. This means all user data is protected by strict Swiss privacy laws.
Tox is easy-to-use software that connects you with friends and family without anyone else listening in. Tox make use of encrypted end2end connections.
RetroShare is more than a few lines can describe. I highly recommend the use of Retroshare , especially if you combine it with the TOR network.