Alternatives to Google Photos

Works on MicroG?

No..

Open Source Gallery

Simple Gallery Pro

Simple Gallery Pro is a highly customizable offline gallery. Organize & edit your photos, recover deleted files with the recycle bin, protect & hide files and view a huge variety of different photo & video formats including RAW, SVG and much more. The app contains no ads and unnecessary permissions. As the app doesn’t require internet access either, your privacy is protected.

Closed Source Gallery

QuickPic Mod

Nice graphics and great animations. Quite customizable.

⚠ Privacy Alert: Connects to the cloud service servers you choose for backups

Sync

See Drive section. Yandex is the only one to offer unlimited photo backup via app.