My Zangi number is 10-1677-4120. Zangi is a decentralized server less communication system that is availble on both Android and iPhones. While I don’t know anyone using Zangi, it looks like a promising system to give it a try. Zangi offers the advantage of not having to provide your telephone number. Also, since the system is decentralized, there is little concern of data breaches. Your communications with another person is between you and the person you are communicating with.