Method 1: The Modern Desktop Sideloading Route (No Jailbreak Required) You can use a computer to sign and install IPAs manually.
: Whenever possible, use the App Store or official developer websites to download apps.
Many preservationists upload massive collections of decrypted 32-bit .ipa files here under digital preservation umbrellas.
: Thousands of classic games and apps have been removed from the App Store due to licensing issues or incompatibility with 64-bit processors (introduced with the iPhone 5s).
Input your current Apple ID credentials (this acts as a self-signing developer certificate).