This is the Pro Key for Boot Shell which will unlock extra features in the app. This is just a key and you will need the main app for this to work.

https://play.google.com/store/apps/details?id=com.kislay.bootshellcommand

Boot Shell pro is intended to act as an alternative to init.d which can execute scripts on device boot.

This can execute any number and any type of scripts.

Just place you scripts files in the specified folder and you are good to go.
*(Do not put any spaces in script name)

It is not recommended for running apps2sd scripts or other scripts that need to be executed before device bootup.

Scripts for system tweaking, supercharging, CPU/ GPU/ IO/ DISPLAY tweaks work perfectly.

Extra features from basic version -
-Execute script files at boot or whenever you need it from the app.
-Inbuilt Script/Text Editor.
-View console outputs and errors.

Feel free to E-mail if you have any doubts regarding the app or its usage.