There is a huge competition when it comes to online messaging services around, but WhatsApp has a collection of features that makes it widely used without any doubt
Due to this, the Facebook-owned app claims to have over two billion users worldwide, which is pretty incredible.
How to pin a chat to the top
If you’re prone to forgetting messages reply, you can also pin a chat so it appears at the top of all your chats, including above new and unread chats, rather than just marking it as unread.
It’s only possible to pin three chats though so don’t get too complacent with your replying.
iOS: Chats > Swipe left to right > Pin Chat.
Android: Long press chat > Press the pin at the top of the screen.