Recovering photos on iPhone when they are deleted in Google Photos cloud service

Yshpakov wrote:

It looks there is the good answer:

That may be the answer that you want to hear, but I'm not sure that it's the way that the system works. Especially if you have already tried your permanent deletion experiment and are looking for an explanation as to why deleting photos permanently from a Web browser also deleted them permanently from your phone.

If you look up a little earlier on that Google Support page, it says

"Important: Deleting photos and videos from the Google Photos app deletes the same items from your device. This means that both the Google Photos copy and the one on your device will be deleted."

Thus the

"Tip: You may still find items permanently deleted from Google Photos on your iPhone or iPad in the recently deleted folder in Apple Photos."

sounds more like an admission that the synchronization isn't perfect, and sometimes leaves things behind which should have been deleted. Note the words "You may", as opposed to "You will."

Yshpakov wrote:

So if I delete photos from Google Photos cloud (via browser) and clean trash bin (on Google Photos side), will I be able to restore the photos on my iPhone? Or those photos are completely lost?

Google says in the "Computer" section of the first Support page linked below that "When you empty your bin, you permanently delete any photos and videos in your bin and they can't be restored."

Google Photos Help – Delete photos and videos

Google Photos Help – Restore recently deleted photos and videos

Sounds like your plan to "clean" the Google photos bin right after deleting the photos is analogous to deleting photos from an iPhone's main Photos library, followed by deleting them from the Recently Deleted album.

If you are using Google Photos in place of iCloud Photos then deleting them in Google Photos online will delete them from all devices sync'd through Google. If they were never in ios Photos app then they will not be in Photos app Recently deleted. They will probably be in Google photos recently deleted, somewhere.

https://support.google.com/photos/answer/6220402?hl=en-GB&co=GENIE.Platform%3DiOS

Yshpakov wrote:

When you take a picture by your iPhone, of course it will be in your iPhone, right? And so, such pictures must survive deletion in Google Photos being moved to Recently Deleted folder in iPhone. Right?

You referred to deleting pictures twice. First deleting them from Google Photos, then "clean[ing]" the "trash bin" (the Google equivalent of the Recently Deleted folder).

Apple says that when you delete a photo from your main Photos library, and follow that up by deleting the photo from the Recently Deleted folder, that photo becomes permanently deleted, and you can't get it back.

Google says that when you delete a photo from Google Photos, and then empty your trash bin ("clean it" - using the OP's terms), your photo can't be restored .

It stands to reason that if you are synchronizing your iPhone's Photos library with Google Photos, that when you permanently delete a photo from one place, that might also permanently delete it from the other – by design.

wikiHow – How to Delete Google Photos and Keep them on Your iPhone

"Unfortunately, when you sync your photos with the Google Photos app, deleting Google Photos will also delete them from your iPhone."

Google Photos is not an Apple product. Contact the app developer here --> App Support or Google Photos Help - Google Support

Exactly, you may do, depends if they were ever in iOS Photos app, as I said earlier.

If you use Google Photos and iOS Photos you may well double up on space, often a critical factor.