Wire

Wire is a free messaging app created by Wire Swiss. The country of origin of Wire messenger is Switzerland which has strict governance on user data under European data retention laws, which means - your info on the app is safe and wont be shared against your permission. It has a user friendly interface and has all the basic functionalities of a messaging app. Let's understand the features of Wire messaging app -
It supports end-to-end encrypted messaging
You can share documents and media upto 25 Mb in size
You can make voice and video calls
It also has a special feature called "Guest Rooms". It is used for external communications where users can chat with external parties without having them register on the app.
It has 3 different modes - Wire Pro, Wire Enterprise and Wire Red.