Signal

Private encrypted messaging with powerful calls and group chats

Signal is built for anyone who wants modern messaging without sacrificing privacy. It delivers the familiar comfort of chat and calls, but wraps everything in some of the strongest end-to-end encryption available to everyday users.

Conversations feel instantly recognizable: you can send text, voice notes, photos, videos, GIFs and documents, all over data, so you’re not burning through SMS or MMS allowances. Voice and video calls are impressively clear and reliable, and the fact that even large group calls (up to 50 participants) are encrypted end to end makes Signal stand out in a crowded market.

Group chats support up to 1,000 people, with granular admin controls to limit who can post or manage members. For more social communication, Stories let you share photos, videos or text updates that vanish after 24 hours, with per-contact privacy settings so you decide exactly who sees what.

Where Signal really differentiates itself is its philosophy. The service is run by an independent nonprofit, funded by donations instead of ads or data mining. The app collects minimal metadata, and thanks to the open source Signal Protocol, messages and calls are designed to be unreadable to anyone but you and your contacts. Extra touches like disappearing messages, screen security, and optional PIN-based registration lock further reinforce this privacy-first approach.

The only notable drawback is that your entire social circle may not be there yet, which can limit its use as an all-in-one communicator. But if privacy and security rank high on your priorities, Signal offers a fast, polished, and increasingly full-featured messaging experience that is hard to beat.