There's PhotoKit: https://developer.apple.com/documentation/photokit https://developer.apple.com/documentation/photokit It's somewhat different than the Flickr

There's PhotoKit: https://developer.apple.com/documentation/photokit https://developer.apple.com/documentation/photokit It's somewhat different than the Flickr API, so it's hard to compare. The Flickr API is great in that it gives you access to everything a user can do on the site. It's really sad that this approach has mostly died (Instagram doesn't have any API, does it?) PhotoKit is impressive in its own way, allowing third-party apps to hook into library management and destruction-free editing. It doesn't give you much control of the synchronization with iCloud. Or, from a different perspective, the sync happens transparently in the background and doesn't need handholding.