Zalo is a popular messaging application in Vietnam that allows users to send text messages, make voice and video calls, and share multimedia content. Launched in 2012, it has gained millions of users due to its user-friendly interface and various features, including stickers and group chats. In addition to messaging, Zalo offers services like social networking and online payments. Users can create profiles, follow friends, and access news updates. The app is available on both Android and iOS platforms, making it accessible to a wide audience in the region.