Mockuuups Studio - Fast and easy way to create product mockups on macOS, Windows and Linux.
Chatib - Chatib is an online chat room where you can meet and chat with new people, make them friends, or even data them online.
Mediamodifier - Create beautiful designs and product mockups in seconds.
ChatSecure - ChatSecure is a free and open source messaging app that features OTR encryption over XMPP.
Design Camera - Drag and drop 3D mockups
Element.io - Secure messaging app with strong end-to-end encryption, advanced group chat privacy settings, secure video calls for teams, encrypted communication using Matrix open network. Riot.im is now Element.