WhatSim Becomes ChatSim, the World's First SIM That Lets Users ... - ANTARA

WhatSim Becomes ChatSim, the World's First SIM That Lets Users ... ANTARA By popular demand of users, WhatSim - the first SIM designed to connect the world's most popular messaging system even in the absence of Wi-Fi - is growing and evolving into ChatSim, the only SIM that lets users chat anywhere, with all messaging ...