"Pink app" is an Internet slang for a fictional app that has nothing to do with the apps people use every day. Some netizens simulate the interface of the "pink app" on social media and create some funny and hilarious pictures for entertainment.

There are a lot of stories circulating on the Internet about the origins of the "pink app". Some people believe that it first appeared in a group chat, due to repeated sending caused other users to pay attention, and gradually became a network terrier. Others believe that the "pink app" may have originated from a movie or TV drama or novel plot, but there is no conclusive evidence.