The most recent update of Castle Clash was launched on Oct 5, 2019 and the app was downloaded by over 1M users. Pay attention to the important moment: ads are a part of the game and it provides in-app purchases. This application is often downloaded by Samsung and Asus users.
You can get the .apk installation package of Castle Clash 1.2.59 free of charge and check out users' reviews on Droid Informer. This file size doesn't exceed 31 MB and the app can be launched flawlessly on Android 4.1 and higher.