cormiertyshawn895 / Retroactive

Run Aperture, iPhoto, and iTunes on macOS Big Sur and macOS Catalina. Xcode 11.7 on macOS Mojave. Final Cut Pro 7, Logic Pro 9, and iWork ’09 on macOS Mojave or macOS High Sierra.

After downloading Retroactive, double click to open it. macOS may prompt you “Retroactive cannot be opened because it is from an unidentified developer.” This is completely normal and expected.

If you right-clicked when opening Retroactive for the first time, you need to right-click for a second time. If Retroactive still can’t be opened, check your GateKeeper settings under the General tab in System Preferences > Security & Privacy. Click “Open Anyway” to open Retroactive.

Retroactive will not harm your Mac. This alert only shows up because Retroactive is not notarized. Retroactive is open source, so you can always examine its source code to make sure it’s safe.

On macOS Big Sur and macOS Catalina, Retroactive can unlock Aperture and iPhoto, or install iTunes. Pick the app you want to run. If you want to run multiple apps from here, pick any one of them. You will always be able to get back to this screen later.

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