HTTPS Everywhere - Chrome extension that encrypts and secures your browser
M for iOS - Email app with automatic encryption
Smart HTTPS - Automatically changes HTTP addresses to the secure HTTPS, and if loading encounters error, reverts...
Hermes - Pandora Client for OS X
KB SSL Enforcer - This extension enforces encryption for websites that support it as much as currently possible in...
Keybase Chat - End-to-end encrypted chat built into Keybase