This is a special app designed to only root many Xiaomi devices including the Redmi 3. This root app is published in .apk file so can be directly installed and run on the phone. It means the rooting process does not need a PC/laptop which is really saves time. Some Mi devices can’t be rooted using all-in-one root apps like KingRoot, Framaroot, and so on which are actually made for general Android phones from different models, brands and types.
But this app is really unique since it is created and designed to only root Xiaomi devices from Redmi to Mi models. I don’t quite sure about its developer but I’ve found this listed at JalanTikus and it seems they are the developer. As always, the file is original, intact and untouched.
Download link has been removed due to Google’s Guidelines
Please just let it go.