Fifteen - a puzzle that is 15 square knuckles with numbers from 1 to 15. All knuckles are enclosed in a 4x4 square Thus, when you place the knuckles in the square, there is one empty space about the size of one knuckle that can be used to move the knuckles.
Baolon designed the app that falls into the Puzzle Games category. Over 100K users set up Fifteen v10 and its latest update was launched on Sep 29, 2020. Users rated the game 4.5 on Google Play.
Some in-app purchases and ads are included into this application. You can download the .apk installer of Fifteen v10 9.3 for free and have a look at users' reviews on Droid Informer. The file size doesn't exceed 33 MB and the app can be launched flawlessly on Android 4.1 and higher. According to the antivirus report, the app is safe and secure.