https://community.giffgaff.com/t5/Blog/WeChat-Messaging-App-Review/ba-p/14153535 WeChat users can send free text messages (SMS), picture messages (MMS), voice messages, video messages, and make free voice calls and video calls. Group chat functionality, broadcast messages (sending voice messages to multiple users) and walkie talkie mode are also available. Other services include location sharing, contacts sharing, photo sharing, moments and games. Moments allow users to share photos with their Facebook or Twitter accounts. WeChat offers paid for services including downloading stickers and downloading games with in-app game purchases. After three months of launching WeChat’s Game Center in 2013, it registered over 570 million downloads.