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Comparison · Collab
PhotoPrism vs SOGo
A side-by-side editorial comparison of PhotoPrism and SOGo — release velocity, themes, recent moves, and the top alternatives to consider.
PhotoPrism vs SOGo: at a glance
What is PhotoPrism?
PhotoPrism swapped in an ONNX vision pipeline, then opened the library to 360° media at 16K.
Two substantial releases in ten weeks moved the product on both axes it cares about. May replaced the legacy Pigo face detector entirely with an ONNX-based pipeline, made vision.yml accept model identifiers from Hugging Face, Ollama and OpenAI-compatible catalogs, and modernised media handling with Vulkan transcoding, a native HEIC/AVIF reader and layered TIFF and PSD support. July added interactive equirectangular 360° photos and video, raised the thumbnail and video ceiling to 16K, and put an inline multi-page PDF viewer in the app.
What is SOGo?
SOGo's 5.12 line has become a CVE conveyor belt while the team's attention sits on SOGo 6.
Six releases in three months, and the majority exist to fix vulnerabilities: XSS via crafted mail, SQL injection, JavaScript injection through hint and theme query parameters, impersonation when OpenID is paired with a non-matching user source, and two CVEs affecting PostgreSQL user sources. Releases 5.12.6 and 5.12.9 exist purely to undo regressions the security fixes introduced.
PhotoPrism vs SOGo: editorial side-by-side
PhotoPrism
3.8COLLAB
PhotoPrism swapped in an ONNX vision pipeline, then opened the library to 360° media at 16K.
◆ Current state
Two substantial releases in ten weeks moved the product on both axes it cares about. May replaced the legacy Pigo face detector entirely with an ONNX-based pipeline, made vision.yml accept model identifiers from Hugging Face, Ollama and OpenAI-compatible catalogs, and modernised media handling with Vulkan transcoding, a native HEIC/AVIF reader and layered TIFF and PSD support. July added interactive equirectangular 360° photos and video, raised the thumbnail and video ceiling to 16K, and put an inline multi-page PDF viewer in the app.
◆ Where it's heading
The AI work has moved from bundled TensorFlow models to a pluggable pipeline where the model catalog is configuration, not a build artifact — Ollama, OpenAI and Hugging Face identifiers all resolve through the same file. In parallel the media layer keeps absorbing formats other libraries push out to external tools: PSD, layered TIFF, PDF, and now 360°. PhotoPrism is positioning as the thing you point at a mixed archive, not just a photo folder.
◆ Prediction
Expect the format expansion to continue and the vision configuration to keep broadening its provider surface, with the accessibility section added in July likely to grow into a fuller pass.
SOGo
0.0COLLAB
SOGo's 5.12 line has become a CVE conveyor belt while the team's attention sits on SOGo 6.
◆ Current state
Six releases in three months, and the majority exist to fix vulnerabilities: XSS via crafted mail, SQL injection, JavaScript injection through hint and theme query parameters, impersonation when OpenID is paired with a non-matching user source, and two CVEs affecting PostgreSQL user sources. Releases 5.12.6 and 5.12.9 exist purely to undo regressions the security fixes introduced.
◆ Where it's heading
Alinto declared a feature freeze on 5.12 to concentrate on SOGo 6, and the changelog reflects it — the one new capability in the window, a REST API in 5.12.2, was explicitly a pre-committed sponsored deliverable the team felt obliged to honour. What is left is a hardening cycle on a large groupware surface, with each fix carrying real regression risk into webmail and calendar.
◆ Prediction
Expect the 5.12.x line to keep producing security releases with regression follow-ups, and no new functionality until SOGo 6 surfaces.
Alternatives to PhotoPrism and SOGo
Other Collab products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either PhotoPrism or SOGo.
Jellyfin
Jellyfin drops the 10. prefix and puts 12.0 through a three-candidate preview.
Immich
Immich is four release candidates into v3 with every feature note published somewhere else.
EGroupware
Two branches, one deadline: 23.1 security coverage ends August 15th and 26.x is the only exit.
File Browser
File Browser is shutting down — the repo archives on 2026-09-01 and no security fixes follow.
Paperless-ngx
Paperless-ngx shipped its 3.0 rewrite, then spent a week putting out the fires.
See all PhotoPrism alternatives → · See all SOGo alternatives →
Recent activity from PhotoPrism and SOGo
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 5d agoPhotoPrism360° media, 16K thumbnails and an inline PDF viewer ⚡
- 2mo agoPhotoPrismDisk-space threshold halts indexing before volumes fill
- 2mo agoSOGoPatch undoes 5.12.8 regressions in preferences and mail display
- 2mo agoPhotoPrismONNX pipeline replaces Pigo; vision models become configuration ⚡
- 2mo agoSOGoTwo CVEs fixed for PostgreSQL user sources
- 2mo agoSOGoFour vulnerabilities: XSS, SQL injection, OpenID impersonation
- 4mo agoSOGoTOTP silently disabled for new users, now fixed
- 4mo agoPhotoPrismOllama configuration via env vars, broad reliability fixes
- 5mo agoSOGoInjection fixes in hint queries, theme queries and categories
- 8mo agoPhotoPrismBatch Edit dialog, Ollama and OpenAI caption generation
- 9mo agoSOGoAttachments can display above the message body
- 1y agoPhotoPrismOllama models in Vision AI and an Adjust Location dialog
Frequently asked questions
What is the difference between PhotoPrism and SOGo?
They serve adjacent needs but don't currently overlap on shipped themes. PhotoPrism is currently shipping more aggressively (velocity 3.8 vs 0.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is PhotoPrism better than SOGo?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. PhotoPrism is currently shipping more aggressively (velocity 3.8 vs 0.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Collab products to evaluate alongside.
What are the best alternatives to PhotoPrism?
Top PhotoPrism alternatives in Collab are ranked by recent ship velocity. Browse the "PhotoPrism alternatives" section above for the current picks, or visit /alternatives/photoprism for the full list with editorial commentary on each.
What are the best alternatives to SOGo?
Top SOGo alternatives in Collab are ranked by recent ship velocity. Browse the "SOGo alternatives" section above for the current picks, or visit /alternatives/sogo for the full list with editorial commentary on each.