Signal : Private Messenger is an instant messaging app for sending encrypted messages and files and making voice and video calls. Its listed functions cover one-to-one communication as well as group chats.
What can you send in a conversation?
The app supports text messages, photos, videos, audio, and other files. It also includes disappearing messages, which users can set to disappear after a certain amount of time. The source does not specify the available time intervals.
Can you make calls or chat with a group?
Signal supports voice and video calls with other Signal users, alongside group messaging for conversations involving multiple people. The source describes the calls and messages as end-to-end encrypted; it does not provide technical details about call controls or group size.
What privacy and transparency features are described?
The app is presented as privacy-focused and uses end-to-end encryption for communications, so the source describes message contents as accessible to the sender and recipient rather than the service. It also mentions minimal data collection and open-source software, whose code is available for review. These are descriptions of the app's approach, not a guarantee about every aspect of data handling.
Which platforms are listed?
Android is the platform relevant to this listing. The source also names iOS and desktop availability, describing Signal as a service that can be used across multiple platforms. It does not specify device requirements or explain how access across devices works.