: It is the successor to the popular iPhoto Library Manager.
The version of PowerPhotos you're looking for, 2.1.4 b1, is a specific beta build from Fat Cat Software. Here’s a short story about the life of a digital archivist using this exact tool. PowerPhotos 2.1.4 b1
The screen glowed a soft blue in Leo’s dark office as the clock ticked past midnight. He was a man obsessed with order, and his Photos library was his greatest challenge. Over 100,000 images—weddings, travel, family dinners—were scattered across three different external drives. : It is the successor to the popular iPhoto Library Manager
: Created by Fat Cat Software to extend the functionality of the native macOS Photos app. PowerPhotos 2.1.4 b1