When Apple released OS X Yosemite (10.10) and the new Photos app, they deprecated iPhoto. Eventually, iPhoto was removed from the App Store entirely. This creates a problem for users who need to reinstall the software on an older machine that has been wiped or formatted.
Before attempting to download and install the software, ensure your Mac meets the historical requirements for iPhoto 9.0: Download Iphoto 9.0 For Mac Os X
However, if you are trying to resurrect an older Mac, or if you simply prefer the classic interface over the newer Photos app, you may find yourself in a difficult spot: Apple has officially discontinued iPhoto, and the download links have vanished from the main App Store. When Apple released OS X Yosemite (10
If you open the Mac App Store today and search for "iPhoto," you will likely be redirected to the modern "Photos" app or find that the original iPhoto page is gone. Before attempting to download and install the software,
folder of an older Mac to your current one, provided the system is macOS 10.14 (Mojave) or earlier. Fat Cat Software System Requirements for iPhoto 9.0
: If you never owned it digitally, you must purchase a physical iLife '11 boxed disc from third-party retailers like or eBay. This disc contains the iPhoto 9.0 installer. Original Installation Discs