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Comparison · Collab
Circle vs SiYuan
A side-by-side editorial comparison of Circle and SiYuan — release velocity, themes, recent moves, and the top alternatives to consider.
Circle vs SiYuan: at a glance
What is Circle?
Circle rebuilt itself around an AI that runs the community, and now builds its landing pages too.
Circle ships a dated monthly release covering web, iOS, Android and its branded-app product, and the last six months have all pointed one direction. Circle Eclipse, announced in June and opened to every customer in late July, re-skinned both member and admin surfaces and brought an AI layer with memory, roughly fifty domain-specific skills and project workspaces. August extends that AI outward: it now builds complete pages from a prompt or an existing URL — homepages, sales pages, event pages in the operator's brand — generating copy and images and running SEO audits inside the builder. The rest of the release is retention plumbing: a Get Started onboarding checklist on web and mobile, live emoji reactions in chats and rooms, customizable member directory filters, and native mobile video recording.
What is SiYuan?
SiYuan re-tagged the same 3.8.2 changelog three times in thirty hours
The 3.8.2 line is a cumulative train: every tag republishes the full release list rather than a delta. Beta.1 was the superset, and beta.2, beta.3 and beta.4 all landed within thirty hours carrying a byte-identical changelog. The substance in that shared list is editor ergonomics (scrolling the viewport without moving the caret, configurable cursor surrounding lines), a broad mobile pass (configurable bottom bar, swipe gestures, marketplace access), and continued build-out of the AI Agent introduced in 3.8.0.
Circle vs SiYuan: editorial side-by-side
Circle
6.3COLLAB
Circle rebuilt itself around an AI that runs the community, and now builds its landing pages too.
◆ Current state
Circle ships a dated monthly release covering web, iOS, Android and its branded-app product, and the last six months have all pointed one direction. Circle Eclipse, announced in June and opened to every customer in late July, re-skinned both member and admin surfaces and brought an AI layer with memory, roughly fifty domain-specific skills and project workspaces. August extends that AI outward: it now builds complete pages from a prompt or an existing URL — homepages, sales pages, event pages in the operator's brand — generating copy and images and running SEO audits inside the builder. The rest of the release is retention plumbing: a Get Started onboarding checklist on web and mobile, live emoji reactions in chats and rooms, customizable member directory filters, and native mobile video recording.
◆ Where it's heading
The community platform keeps being reframed as a business-operations platform: Discover 2.0 supplies member demand, Circle AI does the structuring work, Circle Studios sells the operating labor outright. The page builder fills the one gap in that loop — the acquisition surface an operator previously built somewhere else — and shipping SEO audits with it says Circle intends to own how communities get found, not just how they run. Circle MCP in April remains the tell that the operator was always expected to be an agent. Underneath, the retention items this month are the unglamorous half of the same funnel argument.
◆ Prediction
The fifty Circle AI skills are the surface most likely to open next, either to operator-authored skills or to skills invoked through Circle MCP rather than only in the Circle UI. Expect page building and Discover to connect, so a generated sales page feeds the marketplace listing directly.
SiYuan
6.3COLLAB
SiYuan re-tagged the same 3.8.2 changelog three times in thirty hours
◆ Current state
The 3.8.2 line is a cumulative train: every tag republishes the full release list rather than a delta. Beta.1 was the superset, and beta.2, beta.3 and beta.4 all landed within thirty hours carrying a byte-identical changelog. The substance in that shared list is editor ergonomics (scrolling the viewport without moving the caret, configurable cursor surrounding lines), a broad mobile pass (configurable bottom bar, swipe gestures, marketplace access), and continued build-out of the AI Agent introduced in 3.8.0.
◆ Where it's heading
Two surfaces are absorbing most of the work. The Agent keeps gaining reach rather than changing shape — image upload in agent chat, independent execution across sessions, skill inline markers, kernel log access for error analysis — all extensions of the capability 3.8.0-alpha.1 established. The plugin API is the other growth area, adding roughly a dozen hooks this cycle covering dock visibility, link interception, asset upload interception and breadcrumb buttons.
◆ Prediction
With four betas out and the changelog frozen since beta.1, the next tag in this line is most likely a 3.8.2 stable release.
Alternatives to Circle and SiYuan
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 Circle or SiYuan.
Hive
Hive is building the plumbing its Buzz AI snippets need to run on real team data
Mattermost
Mattermost is selling sovereignty and air-gapped AI, with releases buried in the argument
Paperless-ngx
Paperless-ngx is patching hard behind a 3.1 release that made AI a workflow step
Read the Docs
Read the Docs ships a dated release every week, and this one is documentation and dependencies
Zoho Sign
Zoho Sign is clearing the exit path off Docusign while stacking up regional legal assurance
See all Circle alternatives → · See all SiYuan alternatives →
Recent activity from Circle and SiYuan
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 4d agoSiYuanFourth 3.8.2 beta re-tags an unchanged changelog
- 4d agoSiYuanThird 3.8.2 beta ships beta.1's changelog verbatim
- 4d agoSiYuanSecond 3.8.2 beta leaves the changelog unchanged
- 5d agoSiYuanBeta.1 adds caret-free scrolling and mobile draft recovery
- 6d agoSiYuanCustomizable startup screens and SVG notebook icons
- 6d agoSiYuanv3.8.2-alpha.6: Merge remote-tracking branch 'origin/dev' into dev
- 13d agoCircleAugust release: AI website builder, live reactions, and more
- 1mo agoCircleCircle Eclipse is available to everyone ⚡
- 2mo agoCircleCircle Eclipse 2026: Introducing Circle AI, Discover, Studios, and more ⚡
- 3mo agoCircle📲 May release: Public webinars, new custom app builder templates, and more
- 4mo agoCircle🔗 April release: Circle MCP, AI agent upgrades, and more ⚡
- 5mo agoCircle🗺️ March release: Member map, video recorder, and more
Frequently asked questions
What is the difference between Circle and SiYuan?
They serve adjacent needs but don't currently overlap on shipped themes. Circle and SiYuan are shipping at a similar cadence (velocity 6.3 vs 6.3, 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.
Is Circle better than SiYuan?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Circle and SiYuan are shipping at a similar cadence (velocity 6.3 vs 6.3, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Collab products to evaluate alongside.
What are the best alternatives to Circle?
Top Circle alternatives in Collab are ranked by recent ship velocity. Browse the "Circle alternatives" section above for the current picks, or visit /alternatives/circle for the full list with editorial commentary on each.
What are the best alternatives to SiYuan?
Top SiYuan alternatives in Collab are ranked by recent ship velocity. Browse the "SiYuan alternatives" section above for the current picks, or visit /alternatives/siyuan for the full list with editorial commentary on each.