| Type | Instant messaging platform |
| Origin | VARIES |
| Created | Mid-2000s |
| Developer | Volunteers |
| Current owner | Facebook (2014–present) |
| Operating system | Android • iOS • Windows Phone • Symbian • BlackBerry • Web-based |
| Popular features | End-to-end encryption • Chatbots • Integration with communication protocols |
| Previous ownership | Decentralized organization (user contributions and grants) |
