If you simply want to run third-party IPAs, use AltStore or Sideloadly for legitimate sideloading. Avoid shady websites offering “Cydia.ipa” at all costs—they are the digital equivalent of a locked door with a “free TV inside” sign.
: The standard file format for iOS applications . While official apps are downloaded from the App Store, "sideloading" refers to installing these files manually from a computer .
You can now open and use the application.