unc0ver is described as 'Jailbreak, which means that you can have the freedom to do whatever you would like to do to your iOS device. Allowing you to change what you want and operate within your purview, unc0ver unlocks the true power of your iDevice' and is a ios jailbreaking app in the system & hardware category. There are three alternatives to unc0ver for Mac, Windows, Linux, iPhone and iPad. The best unc0ver alternative is 3uTools. It's not free, so if you're looking for a free alternative, you could try 3uTools or checkra1n.
Comprehensive iOS tool, simplifying jailbreaking, app and data management with one-click app downloads, multimedia handling, device status views, and system diagnostics in an easy interface.
checkra1n is a community project to provide a high-quality semi-tethered jailbreak to all, based on the ‘checkm8’ bootrom exploit.
WinRa1n is a jailbreak tool for Windows users that allows you to jailbreak any device running A7 - A11 chips and iOS 12 to iOS 17. Whether you have an iPhone X, an iPad Air 2, or an iPod Touch 6, WinRa1n can jailbreak it in minutes.
China
3uTools is not meant for jailbreaking. Not even being able to sideload unc0ver.