SuperSU is the best root access manage app ,this version is SuperSU 2.52. SuperSU need you had rooted you device.SuperSU allows for advanced management of Superuser access rights for all the apps on your device that need root.
SuperSU 2.52 APK information:
File name: supersu_2.52.apk
Uploaded: October 11, 2015 at 6:28AM GMT+0800
File size: 5.51 MB (5,781,127 bytes)
Minimum Android version: Android 2.1+ (Eclair, API 7)
Target Android version: Android 5.0 (Lollipop, API 21)