On macOS Ventura, macOS Monterey, macOS Big Sur, and macOS Catalina, Retroactive can unlock Aperture and iPhoto, or install iTunes. Retroactive is open source, so you can always examine its source code to make sure it’s safe. This alert only shows up because Retroactive is not notarized. If Retroactive still can’t be opened, check your GateKeeper settings under the General tab in System Preferences > Security & Privacy.

If you right-clicked when opening Retroactive for the first time, you need to right-click for a second time. To open Retroactive, right-click on the Retroactive app in Finder, and click “Open” as shown below. macOS may prompt you “Retroactive cannot be opened because it is from an unidentified developer.” This is completely normal and expected. Final Cut Pro 7, Logic Pro 9, and iWork ’09 on macOS Mojave or macOS High Sierra.Īfter downloading Retroactive, double click to open it.

Run Aperture, iPhoto, and iTunes on macOS Ventura, macOS Monterey, macOS Big Sur, and macOS Catalina.

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