iOS App Signer

iOS App Signer is a macOS application for re-signing apps and bundling them into .ipa files intended for installation on an iOS device. It accepts .ipa, .deb, .app, and .xcarchive inputs.

You select an input app, a signing certificate, and a provisioning profile, then start the signing process and choose an output filename. The resulting file can be added to a connected device through Xcode’s Devices window. The project’s instructions describe creating a provisioning profile through Xcode, or using an existing certificate and profile if you have them.

To install with Homebrew, run brew install --cask ios-app-signer. The cask installs the app in /Applications/iOS App Signer.app. The project instructions list Mac OS X 10.9 or newer and Xcode 7 or newer as prerequisites for signing. Installing a signed app onto a device also requires a cable and use of Xcode’s device-management workflow.

Sources: Project instructions · Homebrew cask