You can invite someone to Signal using the "Invite Friends" menu in the app, which will send a text message or email.

You can easily unblock someone on Facebook Messenger in the "People" preferences section of the app. Here's how to do it.

Profanities and other offensive content that basic word-filtering tools are designed to catch can be found in some game titles and user profiles on children's gaming platform Roblox, searches of the ...