Technically, on a jailbroken iPhone (e.g., checkra1n, unc0ver, or palera1n), you could install something conceptually similar to Game Guardian. Tweaks like iGameGuardian (a separate paid product) or DLGMemor exist for jailbroken devices. But these are not the original Game Guardian, and they require a jailbreak—a process that is increasingly difficult, risky, and unsupported on modern iOS versions (iOS 16+).
Furthermore, even on a jailbroken device, there is no public, maintained .ipa file for Game Guardian. Jailbreak tweaks are distributed as .deb files via Cydia or Sileo, not as standard IPAs. game guardian ios ipa
Warning: distributing, installing, or using modified or unofficial IPA files to alter apps or games often violates app store policies, terms of service, and may be illegal in some jurisdictions. The information below is for technical and research context only. Technically, on a jailbroken iPhone (e