This is a best communication and social application . It has many a best features and properties for users.
Free Secure and private audio and text messaging .
Free High quality video Calling.
Free Public and private groups to meet people in a large platform .
Free voice calling .
Self-destruct timer for messages ,images and files .
Video,images ,location ,contacts and files of any types can be shared .

In short this is a great application for communication .