Tencent launched QQ in 1999.
Tencent introduced QQ, originally called OICQ, in February 1999. The instant-messaging service quickly became popular in China, helping Tencent build a large online user base during the early expansion of the internet.
The company changed the service’s name to QQ after a trademark dispute involving ICQ, an earlier international messaging program. QQ became known for text messaging, avatars, online games, virtual goods, and other internet services.
Tencent later launched WeChat in 2011. WeChat became a separate and hugely influential mobile platform, combining messaging with payments, social features, mini-programs, and services. Because both products belong to Tencent, they are sometimes treated as interchangeable, but QQ is the company’s earlier messaging service and remains a distinct brand.