There are ways in which some users manipulate their devices to accept unsigned or unlicensed apps on to their devices in order to circumvent some barriers. Taking these measures to install unfiltered apps is very dangerous. Installing pirated apps carries a heavy security risk.
The intention of the app “hackers” in many cases could be to inject malicious code that could compromise your mobile device. Many users save information on their mobile devices such as email passwords, banking information, contacts, Wi-Fi Passwords, etc.
By trying to circumvent the system in place that screens apps, you could be putting your personal information in danger.