This app basically blocks/restricts/monitors your telephony calls and messages to stop any security breach or overall annoyance by unwanted callers. You have the options to block certain contacts/numbers. A huge advantage is that it isn’t regional specific?
Wifi Key Recovery
A simple app designed to recover the password for a previously KNOWN network to which you have logged on before and forgot the WiFi key. Requires root, obviously, but very useful to find old save WiFi passwords.
Do you know any better and important root app? Let us know in the comments below and we will add that app to the list.