Photo King is a trivia game for Android users developed by Pearappx. It is a free-to-use app that is available for download on the Google Play Store. The app is written in Chinese, and it is the 6th app in the FUN SERIES.

The app offers two different game modes. The first mode requires the user to pick the words for the name of the item shown in the picture as quickly as possible. The second mode requires the user to recognize the item in the picture that is covered by squares. The game is designed to test the user's speed and instincts.

The app has gone through several updates, with the latest version being V2.1 released on, which repaired some bugs. The previous version, V2, released on, introduced the second game mode. The app was first launched on.