Checkra Is the best tool to Jailbreak iPhones and Apple Devices.
From Checkra1n Latest Update you can Jailbreak the iOS 13. Unfortunately it doesn’t support the iPhone 11.
I know Some readers does not know the meaning of Jailbreak.
Jailbreak is simply by pass the apple restrictions. Apple devices have their own restrictions that unable to install the Third party applications.
After the Jailbreak you can Install the third party software’s to iPhone devices.
You can download Checkra1n from here.
Only MAC Version still available but Windows version will be coming soon