Minimum specifications requirement for Grand Chase are as below.

 - OS: Android 4.1 or later / iOS 9.0 or later

※ Please understand that devices with Android 4.0 and earlier or iOS 8.4 and earlier might not be able to run the GrandChase - Dimensional Chaser

 - Memory: 2GB or higher

※ If the available memory on the mobile device is less than 2GB, the gameplay may not be smooth.