Any opinion on why Immich instead of Photoprism? I’m considering to pick one of them for my media library and Immich not being labeled as stable scares me a bit.

IIRC, Immich started as a project after Photoprism changed their licensing to restrict several features, and then picked up a ton of momentum very fast. They've pledged they won't ever pay-gate features, which isn't always a positive as those features help sustain a project long term, but they have so much community support and love that I'm not worried about that in this case.

Feature wise I think they are pretty comparable (vs the paid version of Photoprism), and I like the UI of Immich slightly more. Immich also supports singe sign on via OIDC easily, which I rather appreciate so my family doesn't have to remember 10 different passwords.

Regarding stability it's actually pretty reliable. I've been running it for a long time via Docker in the form of the TrueNAS plugin and have never had any issues, like ever, so I think it being marked as unstable was a bit overly cautious. I think they have also recently moved to a new phase of development that is also going to be even more stable. Even if it does break, all of your media is stored in a nicely organized directory structure on the filesystem so you're not going to lose anything.

I tried both ~1,5 years ago, Immich won the "spouse test" as I could get my partner to use the app on her phone (with her own profile) instead of the native gallery.

Photoprism didn't support profiles or have an app (back then at least, don't know about today), and I couldn't convince her of using some other gallery in the browser...

I for myself liked the Photoprism GUI, but I could never get the face recognition to work well, and manually tagging people/places (or basically doing anything) on thousands of pictures was quite painful.

Also interested in this. I've been running photoprism for several years now using their docker image and don't really have much to complain about but always open to other alternatives.

One thing Immich supports which Photoprism doesn't is multiple user accounts. That doesn't really bother me too much but it's a pretty big advantage.

Edit: Actually one thing I can complain a bit about is the object recognition accuracy. Face recognition I think works decently enough but objects are frequently not identified in my photos. How's Immich in this regard?

I was using PhotoPrism for a few years and switched over to Immich and am very glad I did.

- There was no good mobile backup story. State-of-the-art was WebDAV sync and import delays which would truncate files and other issues on back connections. It also made deletion risky.

- The UI had lots of things that felt very opinionated for a very specific workflow that seems niche. Things like auto-adding generated titles and other things.

- The face recognition is much worse, especially for non-white faces. Even detection didn't seem to have a good setting that would reliably identify what is a face without way too many false positives.

- Immich's semantic image search is way better than what was on PhotoPrism where it seemed to just find a few tags.

- PhotoPrism had lots of UI quirks like the persistent selection that almost never worked how I wanted it to.

Lots of other odds and ends as well. There isn't anything that I actually miss from PhotoPrism.

I personally use Photoprism, though I don't love either.

Both still feels like the sad-er side of open-source WRT polish - stability, reliability and ease-of-use.

I would be willing to pay for something great that I can self-host, but sadly nothing truly great exists.

Photoprism is lacking batch edit for tags/metadata https://github.com/photoprism/photoprism/issues/271