Signal

Signal is an independent nonprofit messaging app. It lets users share text, voice messages, photos, videos, GIFs and files. It also supports voice and video calls. Group chats are available for family, friends and coworkers.

Signal uses end-to-end encryption powered by the open source Signal Protocol. It is not tied to any major tech companies and can never be acquired by one. Its development is supported by grants and donations. Signal contains no ads, no affiliate marketers and no tracking.