Outline
Outline adds personal docs even admins can't open, pairing agent access with user privacy.
Comparison · Collab
AFFiNE vs Guru
A side-by-side editorial comparison of AFFiNE and Guru — release velocity, themes, recent moves, and the top alternatives to consider.
AFFiNE vs Guru: at a glance
What is AFFiNE?
AFFiNE breaks a run of dependency-only canaries with a fix for blob uploads after quota changes.
AFFiNE is a collaborative workspace (docs, whiteboard, knowledge base) shipping canary builds across cloud, self-hosted Docker and native iOS/Mac apps. After five canaries of dependency work (piscina security patch, Node.js 22.23.3, Swift EventSource, ESLint v10, a broad dependency refresh), canary.921 fixes server-side blob sync: uploads read the current workspace storage limit, cancellation only hits the matching upload, and failed storage reservations retry more reliably. Before that came a stable iOS Share Extension, MCP Server visibility tied to Copilot, and config-driven OAuth and payment settings.
What is Guru?
Guru is tightening the leash on the Knowledge Agent it just handed the keys to.
Everything recent is the Knowledge Agent. It already writes to the knowledge base — creating collections, bulk-archiving cards, running drafts through to publish — and the newest work narrows where and how it acts: per-channel behaviour in Slack, and skills pinned to a named document instead of searching for one. Around that sit guardrails, skill permissions, recoverable drafts and scheduled automations.
AFFiNE vs Guru: editorial side-by-side
AFFiNE
6.3COLLAB
AFFiNE breaks a run of dependency-only canaries with a fix for blob uploads after quota changes.
◆ Current state
AFFiNE is a collaborative workspace (docs, whiteboard, knowledge base) shipping canary builds across cloud, self-hosted Docker and native iOS/Mac apps. After five canaries of dependency work (piscina security patch, Node.js 22.23.3, Swift EventSource, ESLint v10, a broad dependency refresh), canary.921 fixes server-side blob sync: uploads read the current workspace storage limit, cancellation only hits the matching upload, and failed storage reservations retry more reliably. Before that came a stable iOS Share Extension, MCP Server visibility tied to Copilot, and config-driven OAuth and payment settings.
◆ Where it's heading
The canary channel is moving from toolchain housekeeping back to product fixes, starting with storage and sync correctness on the server. The three active lines remain mobile capture, making Copilot and MCP switchable per deployment, and getting quota, payment and auth behaviour right for self-hosted and cloud workspaces.
◆ Prediction
A stable release bundling the iOS Share Extension and the recent storage fixes is the most likely next visible move; the entries don't show its timing.
Guru
5.0COLLAB
Guru is tightening the leash on the Knowledge Agent it just handed the keys to.
◆ Current state
Everything recent is the Knowledge Agent. It already writes to the knowledge base — creating collections, bulk-archiving cards, running drafts through to publish — and the newest work narrows where and how it acts: per-channel behaviour in Slack, and skills pinned to a named document instead of searching for one. Around that sit guardrails, skill permissions, recoverable drafts and scheduled automations.
◆ Where it's heading
The arc is autonomy first, then control. Having given the agent write access and a schedule, Guru is now spending releases on determinism and scoping — making the agent's behaviour predictable per channel and its grounding exact per skill. That is the work required before customers let an agent run unsupervised on a knowledge base, and it suggests trust, not answer quality, is the constraint being engineered against.
◆ Prediction
The scoping controls point toward auditability as the next gap: some record of what the agent did to the knowledge base, and per-skill or per-channel review of those actions, to match the permissions and guardrails already shipped.
Alternatives to AFFiNE and Guru
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 AFFiNE or Guru.
Apache Answer
Apache Answer is turning its Q&A engine into a searchable AI knowledge base, one RC at a time.
SiYuan
SiYuan 3.8.8 reaches beta carrying Gemini, DeepSeek agent tools and database automation.
Syncthing
Syncthing 2.1.7 is on its third release candidate, now hardening the sync protocol against bad data.
GitHub
GitHub makes open source license compliance a ruleset-enforced GA for Enterprise Cloud.
Hive
Hive makes its AI proofer a named approver and lets workflow buttons open prefilled Forms.
Recent activity from AFFiNE and Guru
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 6d agoAFFiNEAFFiNE fixes blob uploads after storage quota changes
- 7d agoAFFiNEDependency refresh plus smoother workspace-switch transitions
- 8d agoAFFiNECanary 908: ESLint upgraded to v10
- 9d agoAFFiNECanary bumps the native EventSource library to 0.1.9
- 10d agoAFFiNENode.js runtime bumped to 22.23.3
- 11d agoAFFiNECanary patches piscina RCE advisory with a 5.3.2 bump
- 1mo agoGuruTune how your Slack agent joins the conversation, channel by channel
- 1mo agoGuruGround a skill in the exact document it should use, every time
- 2mo agoGuruHand your knowledge base upkeep to your Knowledge Agent ⚡
- 3mo agoGuruNever lose a draft to employee turnover again
- 3mo agoGuruOperator Mode
- 3mo agoGuruMicrosoft Work IQ
Frequently asked questions
What is the difference between AFFiNE and Guru?
They serve adjacent needs but don't currently overlap on shipped themes. AFFiNE is currently shipping more aggressively (velocity 6.3 vs 5.0), with 0 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 AFFiNE better than Guru?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. AFFiNE is currently shipping more aggressively (velocity 6.3 vs 5.0), with 0 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 AFFiNE?
Top AFFiNE alternatives in Collab are ranked by recent ship velocity. Browse the "AFFiNE alternatives" section above for the current picks, or visit /alternatives/affine for the full list with editorial commentary on each.
What are the best alternatives to Guru?
Top Guru alternatives in Collab are ranked by recent ship velocity. Browse the "Guru alternatives" section above for the current picks, or visit /alternatives/guru for the full list with editorial commentary on each.