Rakuten Viber Messenger
The abstract for the given text is as follows:
Rakuten Viber is a popular messaging and calling app that connects over a billion people worldwide. It offers a range of features such as group chats, disappearing messages, and reminders. Users can send various types of messages for free, including text, photos, stickers, GIFs, voice, and video messages. The app also allows for free audio and video calls to anyone in the world, with the ability to call up to 60 people simultaneously. End-to-end encryption is enabled by default for all calls and chats, ensuring privacy and security. Viber Out is a low-cost international calling service that allows users to call landlines and mobile phones. Group chats can be opened for up to 250 members, with features like polls, quizzes, and reactions. Users can personalize their chats with lenses, GIFs, and stickers, and can also send disappearing messages with customizable timers. Viber also offers Communities and Channels for users to connect with others who have similar interests. AI bots are available to answer questions and provide useful services. Users can react to messages with emojis and create notes and reminders. Rakuten Viber is part of the Rakuten Group, a prominent player in e-commerce and financial services.