You can install/backup .ipa files, but iOS 14+ restrictions prevent downloading apps from i4tools’ own library (must use official App Store).
**Have you tried
Simple one-click tools to upgrade or downgrade iOS firmware and jailbreak supported devices.
If you are troubleshooting a glitchy device, i4Tools lets you peek under the hood to view crash logs and hardware details that Apple usually hides from the user.
The official English-language alternative that shares nearly identical features, interface, and layout with i4tools. It is the standard recommendation for English-speaking users. Features in the English Equivalent (3uTools) The features found in i4tools are mirrored in 3uTools :
View detailed hardware information, battery life cycles, and storage details for iPhones, iPads, and iPods.