WhatsApp is a multiplatform messaging app that lets you make video and voice calls, send text messages, and more — all for free and just with a Wi-Fi connection. WhatsApp is especially popular among friends and family who live in different countries and want to stay in touch, with over 2 billion active users.
– To see hidden you have to follow these steps:-
Step 1:- Go down to the end of the chats.
Step 2:- Click on the Archived section. You will get to see all the hidden chats if you do that.
Step 3:- To see hidden chats at the top again, long-press on any chat and click on the Archive box.
Also read : How can I hide chat without deleting it?