What is Vapk File (new mod apk file format) ? 
VAPK is a new file format standard for Android Mod Apk package file. Contains all Mod Apk package and obb cache asset file to keep Android mod games or mod apps working, it always ends in ".vapk". To ensure mod games, mod applications run perfectly, Mod Apk Install one click install makes it easy for Android users directly install .vapk, .apk file to the root directory. 
1. All .apk, .vapk files on MobPark.cn can be installed with MobPark Mod Apk Installer
2. VAPK Installer is available for Android™ phone and tablet, you can download and install APK,VAPK( APK with OBB Cache Data) on both PC and Android Mobile.