The invention of the internet and social media brought on a cultural shift in the way people interact, socialize and spend their time. Since the invention of the internet, we have experienced an enormous increase in written content, because people constantly wanted to connect one with another and share information. Social media has driven people to consume information like never before. Although the internet itself serves as an open content, it is not safe or protected. In recent years, communication apps have become more popular, however, there are various challenges that app developers have to worry about. Currently, there aren't many applications available to connect people and share information freely and safely. Instead, our market has relied on centralized apps and communication platforms. ySign is a decentralized messenger based on blockchain technology that connects people completely free, safe and anonymous. This application provides the security and anonymity that people want to gain, in order to increase freedom and security while communicating and exchanging information.