Jailbreaking refers to the process of removing all restrictions imposed on an iOS device. iOS devices that are vulnerable to being jailbroken include but are not limited to; Apple iPad, Apple iPod Touch, Apple TV 2 and all Apple iPhone smartphones.
Jailbreaking allow root access to system files that can be manipulated to enable installation of apps, themes, and extensions that are not supported by Apple , or unavailable for download on Apple App Store.
Below are the articles that may be useful for you :
[Android] What does “rooted device” mean?
Can I access and log in to the Touch ‘n Go eWallet app using a jailbroken / rooted device?
Can I log in to my Touch ‘n Go eWallet account using another device that is not jailbroken / rooted?
Why is the Touch ‘n Go eWallet app not supported on jailbroken / rooted devices?
Can I continue enjoying the RFID and/or the “TNG Card” feature?