Very important feature for me.

I would suggest that Proton Photos backup features to imitate Dropbox Camera Roll automatic backup features: (1) automatic uploading of new photos in background on iPhone to Proton Drive designated Camera Roll backup folder (keep track of what's already uploaded and what's not); (2) renaming files to YYYYMMDDhHHmmss format such that the date+time stamp down to the second in 24-hr format (captured from iOS clock on photo shoot instant as metadata) so taht when files are uploaded to Proton Drive they get these unique date+time stamp style unique file names to avoid file name collusions. Dropbox does this really well but put their autobackup behind a paywall so I would like to see this with Proton. I could pay for iCloud but as one other person said, at this point I am committed to continued support of Proton and would like to see this feature in Proton Drive/Photos.

Looking to move from gmail. I currently backup photos to icloud. I want to be able to automatically store the photos on this drive

Very eager for this to happen please! :)

Replaced my old Android with an iPhone today after getting increasingly frustrated with Google's ecosystem, and already really missing Photo Sync.

I really need this feature. It's the only thing stopping me from buying a full license for all Proton products. Please implement it somehow, even if I have to keep the app open all the time for synchronization.
This is the feature missing for a perfect ecosystem!
Special thanks for everything you do!

Absolute must. Would love to see a planned deadline for this feature.

Sad that android always comes out first but really really looking forward to this so I can be free from Apple photo and all.

Absolute NEED - it would migrate me off of amazon photos and tresorit photos

Extrem wichtig um Tresorit abzulösen

Been hoping for this for a long time

I had the same request - here is my comment:

When syncing photos with Proton Drive on iOS with the photos feature, the app must stay open in order to upload assets.
When the app is in the background, the backup process stops after a few seconds.
I know that there are iOS limitations for background tasks, but it would be valuable if you could find ways to make background uploads possible.
As a reference - a self hosted photos application called "Immich" released that feature earlyer this year for iOS (which I use and works great).
Maybe this can be implemented in Proton Drive - here's the code for iOS on GitHub:
https://github.com/immich-app/immich/pull/1758
Thank you!