Signal

5.15.6

Signal Private Messenger is a messaging app that takes pride in the promise that it offers complete privacy for the people using it. Read more about Signal  

Privacy is one of the most sought after features right now, which means that any application that can provide it in any meaningful way will be successful. Signal Private Messenger makes a promise that no data remains on the servers and that all is done with great discretion.
 
End of end encryption is not something new, but it’s the cornerstone for Signal Private Messenger. Also, the application is open source, which means that anyone can take a look at it and see that the developers are telling the truth.
 
Also, Signal only uses existing phone number and address book, which means that you won’t have to worry about losing usernames, passwords, or PINs.