The standard font Apple uses on iOS and iPadOS devices is SF Pro. Although it is clean and readable, some users may be tired of this font. Unfortunately Apple doesn’t allow us to change the system font in Settings, but if you still intend to do that, there is a doorway in iOS 16 that makes this possible.
Last week, developer Zhuowei Zhang released an app on GitHub that allows users to overwrite fonts on iOS. Moreover, it is not necessary to jailbreak the iPhone to do this trick. Instead, the app exploits a kernel execution bug (CVE-2022-46689) that Apple patched in iOS 16.2.
If you have updated your iPhone to iOS 16.2, which was released on December 13, you cannot use this application. If you are using a version below, you can try the app. The new application allows you to select the Segoe UI, Fira Sans, Comic Sans MS and Choco Cooky fonts as system fonts.
If none of these fonts are to your liking, you can also import custom fonts ported for iOS. If you want to learn more about how to do this, you can check out Zhang’s GitHub page.