Rootsu - is a free root validator rooted checker su busybox on your device.
It provides detail check regarding su and also information's about the su.

Features:

★ One click superuser check with "#" button
★ Details superuser check
★ Device name
★ Device model
★ Root management apps
★ Potentially dangerous apps
★ Test keys
★ Busybox binary
★ Superuser binary
★ Superuser exists
★ Read/write paths
★ Dangerous properties
★ Root native cloaking apps
★ Futuristic UI

Note: This application does not root your device it only verify if it is rooted or not!