Send Me Color! - With Send Me Color! you can send a hint to your contacts that will look like color card.

Briar - Secure messaging, anywhere

Partey.io - Invite to parties and events. Dead simple, privacy-first. Just send a link to your friends. No accounts needed!

Chat Offline - Last week, and after logging about 100 hours on Apex Legends, Origin started to do me dirty by showing "Chat offline" this results in not showing my friends list in game and me not being able to join them for a game as a result.

Push Party - Push Party is an exclusive, invite-only social network

The Serval Mesh - It works by using your phone's Wi-Fi to not communicate with other phones on the same network.