The first unified cross-platform application in Blockchain: Crypviser - is an application that tries to solve many problems. It can handle chat, audio and video calls, photo / file sharing, voice conferencing, etc. The in-app encryption portfolio allows users to maintain, manage and transfer money through the CVPay system, crypviser can protect casual users, as well as other types of users, such as experts in journalism on and off the field, business owners, politicians, or anyone else who risks being spied on and losing their privacy.