Read the Docs
Read the Docs moves builds to Python 3.14 and Ubuntu 26.04 by default.
A side-by-side editorial comparison of Capacities and Zettlr — release velocity, themes, recent moves, and the top alternatives to consider.
Capacities adds whiteboards and a global graph to its object-based notes.
Capacities is a structured personal knowledge tool shipping a named release about monthly. The October release adds whiteboards and a global graph view, a visual layer over existing notes, plus a polish pass. September brought audio recording and transcription, bulk property editing and AI chats that can edit and act on objects. AI image generation and a Pro+ tier with a larger AI budget arrived in August.
Zettlr added admonitions after six years, then spent a release fixing its updater.
Zettlr 4.8.0 brought admonitions, a feature six years in the making, plus translation updates and a fix for a long-standing logic bug in search. 4.9.0 followed in late October to stop a false 'Update failed' error introduced by 4.8, drop macOS 12 and old Ubuntu support, distrust the eMudhra TLS certificates and render reference-style images.
Capacities is a structured personal knowledge tool shipping a named release about monthly. The October release adds whiteboards and a global graph view, a visual layer over existing notes, plus a polish pass. September brought audio recording and transcription, bulk property editing and AI chats that can edit and act on objects. AI image generation and a Pro+ tier with a larger AI budget arrived in August.
Two threads run together: AI that acts inside the workspace (connectors, chats that edit, a paid AI budget) and better ways to see and capture what is already stored (graph, whiteboards, audio). API 2.0 in July opened the space to outside tools.
Expect more AI actions inside chats and further work on the graph and whiteboard surfaces; the entries do not say whether whiteboards will reach the API.
Zettlr 4.8.0 brought admonitions, a feature six years in the making, plus translation updates and a fix for a long-standing logic bug in search. 4.9.0 followed in late October to stop a false 'Update failed' error introduced by 4.8, drop macOS 12 and old Ubuntu support, distrust the eMudhra TLS certificates and render reference-style images.
Releases arrive roughly monthly and alternate between a headline writing feature and cleanup of the previous one. The app is tracking Electron's platform support, so older operating systems will keep falling away.
A small 4.9.x fix release or a feature-led 4.10 in about a month fits the pattern; the entries don't hint at its contents.
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 Capacities or Zettlr.
Read the Docs moves builds to Python 3.14 and Ubuntu 26.04 by default.
Komga's NextUI beta keeps gaining features while the old UI gets only translations.
Guru's Knowledge Agents get the plumbing that makes their answers checkable and safe.
EGroupware retires 23.1 and keeps shipping security fixes every week or two.
Immich's 3.4 candidate adds passkeys and built-in backups.
PhotoPrism now lets AI assistants search your photo library over MCP.
See all Capacities alternatives → · See all Zettlr alternatives →
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
They serve adjacent needs but don't currently overlap on shipped themes. Capacities and Zettlr are shipping at a similar cadence (velocity 2.5 vs 2.5, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Capacities and Zettlr are shipping at a similar cadence (velocity 2.5 vs 2.5, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Collab products to evaluate alongside.
Top Capacities alternatives in Collab are ranked by recent ship velocity. Browse the "Capacities alternatives" section above for the current picks, or visit /alternatives/capacities for the full list with editorial commentary on each.
Top Zettlr alternatives in Collab are ranked by recent ship velocity. Browse the "Zettlr alternatives" section above for the current picks, or visit /alternatives/zettlr for the full list with editorial commentary on each.