The Signal messenger and protocol.

I’ve never actually used it. Is it like instagram reels where you can put a photo/video and music together?

Edit: Just tried it. I don’t see the appeal to be honest. A messaging app to me is just that, an app to message people. If I wanted social media to post updates of whatever, I’d use pixelfed or mastodon. The author says the advantage of Signal is the granularity of the audience of your story. IIRC, facebook and the like allow you to restrict down to specific people you want. Obviously the corporate surveillance part is a no-brainer, but if you’re specifically talking about audience filtering, it’s no different.

IMO, instead of social media features, they should try to copy some Telegram features instead (sticker packs, automation, etc.) to make it more enticing to regular users. Make it a full feature chat app instead of a social media app like instagram.