Photo Sharing on Android like on iPhone?


I use iPhone for years now and a very nice feature is the photo sharing capability on it via iCloud.
I have different "shared albums" with different subscribers to it and when I made a photo I can instantly share it in various albums. Subscribers get a notification on their iPhone or on the Mac and can see the new photos. GREAT. This feature is really GREAT.

Before I switch to Android based phones, is there anything similar to this?
If so, what app do I need, what accounts, services etc?
Any costs involved?