@DiDA
I have tried a couple of different text editors but am unable to modify the plist file to duplicate install this hack.
Under the instructions it says any text editor but I need more help as the file type has changed since your last versions.
Quote from instructions
2. Now, we already have the app from the App Store installed on your iDevice. So we would like to install the new modded IPA as a different app without replacing/overwriting or affecting the original non-modified app. To do this, we open up the .IPA using 7-zip and text edit the Payload\AppName.app\Info.plist file with any text editor.
*Done some experimenting and managed to use plist editor pro. A far cry from any text editor mentioned in instructions but I got it working.