where are downloaded ring snapshots stored on iPhone and Mac.

I'm new to Ring - I have a ring doorbell 2 and a stick up cam installed. I see videos, get alerts, etc. I can see snapshots in my timeline but when I download a snapshot on my iphone, I am unable to find where the snapshot is stored? On my Mac, I don't see any option to download snapshots, just videos. Thanks. I apologize if this has been previously answered but I can't find it if so. Neither does a website produce anything.