FriendLife - FriendLife is a great and interesting way of making new and dashing friends for free.
Crypho - End-to-end-encrypted messaging and file sharing
Twoo - With the millions of active and interesting people around the world, Twoo is one of the most interesting and practical means for finding the new people across the globe.
Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.
MushRoom - KnockKnock the person whom you want to message and he/she should accept your knockRoom or Group can be created by providing a nameShare Room link with your friends to join the conversationWatch video or listen music during conversation
dPhone - The most secure calling app. Open Source and Free.