Chat Undetected 

Chat Undetected lets you disable Facebook Messenger’s read receipt feature, preventing others from seeing if you have viewed a message or not.

With Facebook Messenger’s read receipt feature, anytime you chat with someone on Facebook you can see if they’ve read your message and vice-versa.

There are many occasions where you won’t want someone to know if you’ve read their message or not. Chat Undetected lets you disable this feature so that you go undetected.