Physical payment collection is creating a lot of safety and security challenges to handle payment collection in real-life scenarios. Digital currency has become a preferable choice in the 21st century for business transactions for payment collection. People are not aware about the utilization of digital currencies working principles & types and other digital currency integration with blockchain. We have discussed some of the digital currency system based applications that exist in today’s world, challenge faces within these applications and their security weakness within this conference paper. Proposed solution will help to boost customer confidence toward the digital currency system, enabling some methods of data transmission control and offer guidelines toward the selection process. Case study on other countries uses on the system as well as discussion between the non blockchain based and blockchain based digital currency system in order to better understand the advancement of digital currency system.