Snapchat is a video messaging application. Users can take photos, record videos, add text and drawings, and send them to a controlled list of recipients. These photos and videos are known as ‘Snaps’. They delete automatically after a set amount of time unless the other user chooses to screenshot the snap. When a snap is posted the chosen recipient gets a notification.
Facebook Messenger users can send messages and exchange photos, videos, stickers, audio, and files, as well as react to other users’ messages and interact with bots. The service also supports voice and video calling. The standalone apps support using multiple accounts, conversations with optional end-to-end encryption, and playing games.
If you want total privacy, Telegram is an app where messages between users are free and private, and you can initiate a secret chat, which heavily encrypts messages user-to-user with a unique key, to avoid interception.
Other examples include:
- Kakao Talk
- Google Hangouts