What is the difference between the DigitalBank Vault and other secure communication devices ?

What is the difference between the DigitalBank Vault and other secure communication devices ?

The DigitalBank Vault does not store and has no way to store data,information, keys, passwords or any other form of memory .

No information can be ever retrieved ,no matter what forensic tools are used .

No Voice calls or Text Messages can be ever intercepted, read, listened to or recorded, because the communication system is end to end encrypted with a one time key ,and 100% Peer to Peer , without any third party server's involvement .