Certain older builds are more reliable for "sideloading" apps on jailbroken devices running iOS 6 or 7. Popular Old Versions and Their Use Cases Key Feature iFunBox v2.9 Windows XP / Vista Extremely lightweight and stable. iFunBox v3.0 iOS 7 & 8 Users Introduced the modern App Store view. iFunBox v4.0 Windows 10 Balanced compatibility for 64-bit systems. How to Safely Download Old Versions
Run any old installer through a tool like VirusTotal before running it on your PC. Installation Tips for Older Systems ifunbox download old version
Once downloaded, right-click the .exe file and check the Digital Signature in properties to ensure it is signed by "Appholic" or the original developers. Certain older builds are more reliable for "sideloading"