AFFiNE
AFFiNE builds out MCP credential control while widening its Notion/OneNote import net.
Comparison · Collab
SiYuan vs Circle
A side-by-side editorial comparison of SiYuan and Circle — release velocity, themes, recent moves, and the top alternatives to consider.
SiYuan vs Circle: at a glance
What is SiYuan?
SiYuan rides its 3.7 overhaul with rapid alpha polish on mobile and cross-platform
SiYuan is an open-source, local-first knowledge base. Its 3.7 line was a throughout renewal — a redesigned UI, a kernel plugin system, and a CLI — and the feed since has been a fast cadence of alpha releases (3.7.1, 3.7.2) grinding on mobile editing and cross-platform quirks across Android, HarmonyOS, iOS, and the Microsoft Store build.
What is Circle?
Circle is turning its community platform into an AI-native OS, from prompt-built setups to MCP.
Circle runs the full community stack: courses, events, memberships, branded apps, and a built-in CRM. Across 2026 it has layered AI through all of it, from Copilot analytics and AI agents to Circle MCP and, now, Circle AI, which generates complete community structures from a prompt. The June Eclipse event bundled that AI layer with a redesigned course builder, a unified Inbox, the Discover 2.0 marketplace, and Circle Studios, a done-for-you service for top creators.
SiYuan vs Circle: editorial side-by-side
SiYuan
6.3COLLAB
SiYuan rides its 3.7 overhaul with rapid alpha polish on mobile and cross-platform
◆ Current state
SiYuan is an open-source, local-first knowledge base. Its 3.7 line was a throughout renewal — a redesigned UI, a kernel plugin system, and a CLI — and the feed since has been a fast cadence of alpha releases (3.7.1, 3.7.2) grinding on mobile editing and cross-platform quirks across Android, HarmonyOS, iOS, and the Microsoft Store build.
◆ Where it's heading
The work is consolidating the 3.7 overhaul along three lines: extensibility (kernel plugins), cross-platform parity (HarmonyOS now treated as a first-class target alongside Android and iOS), and mobile editing polish. The 'step toward intelligence' language hints at AI features, but the concrete shipping is platform breadth and extensibility.
◆ Prediction
Expect 3.7.2 to stabilize out of alpha with continued mobile and HarmonyOS fixes; the kernel plugin system points toward a growing third-party plugin ecosystem as the next surface.
Circle
3.8COLLAB
Circle is turning its community platform into an AI-native OS, from prompt-built setups to MCP.
◆ Current state
Circle runs the full community stack: courses, events, memberships, branded apps, and a built-in CRM. Across 2026 it has layered AI through all of it, from Copilot analytics and AI agents to Circle MCP and, now, Circle AI, which generates complete community structures from a prompt. The June Eclipse event bundled that AI layer with a redesigned course builder, a unified Inbox, the Discover 2.0 marketplace, and Circle Studios, a done-for-you service for top creators.
◆ Where it's heading
The through-line from February to June is Circle moving up-stack: from shipping individual features to assembling an AI-assisted operating layer, a two-sided marketplace for member acquisition, and a services arm. Automation and distribution are becoming as central to the pitch as the tooling itself. Each monthly release adds another rung on that ladder rather than broadening the feature surface sideways.
◆ Prediction
Expect the next releases to extend Circle AI beyond initial setup into ongoing operations, and to widen what MCP-connected agents can query and act on inside community data.
Alternatives to SiYuan and Circle
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 SiYuan or Circle.
CoScreen
CoScreen ships its final build and declares End of Life after a year of quiet.
Hive
Hive keeps compounding dashboard, portfolio, and Buzz-automation upgrades — steady, not splashy
Anytype
Anytype's alpha track is a chat-and-performance grind toward a stable release.
GitHub
Every new Copilot capability now ships with an enterprise dial bolted to it.
Asana
Asana bets on configurable AI Teammates while metering the credits they burn
See all SiYuan alternatives → · See all Circle alternatives →
Recent activity from SiYuan and Circle
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 5d agoSiYuanSiYuan 3.7.2-alpha.2: mobile outline drag-and-drop and keyboard fixes
- 5d agoSiYuanSiYuan 3.7.2-alpha.1: mobile keyboard and rendering fixes
- 8d agoSiYuanSiYuan: notification switch and mobile table refinements
- 10d agoSiYuanSiYuan 3.7.1-alpha.2: table scroll and mobile sidebar fixes
- 11d agoSiYuanSiYuan 3.7.1-alpha.1: mobile sidebar and Markdown import fixes
- 12d agoSiYuanShorthands on mobile, Kernel plugin system, CLI and New UI ⚡
- 26d agoCircleCircle Eclipse 2026: Introducing Circle AI, Discover, Studios, and more ⚡
- 1mo agoCircle📲 May release: Public webinars, new custom app builder templates, and more
- 2mo agoCircle🔗 April release: Circle MCP, AI agent upgrades, and more ⚡
- 3mo agoCircle🗺️ March release: Member map, video recorder, and more
- 4mo agoCircle📣 February release: Public RSVPs, contact notes, and more
Frequently asked questions
What is the difference between SiYuan and Circle?
They serve adjacent needs but don't currently overlap on shipped themes. SiYuan is currently shipping more aggressively (velocity 6.3 vs 3.8), with 1 editorial sparks in the last 30 days against 1. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is SiYuan better than Circle?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. SiYuan is currently shipping more aggressively (velocity 6.3 vs 3.8), with 1 editorial sparks in the last 30 days against 1. For your specific use case, the alternatives sections above list other Collab products to evaluate alongside.
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.
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.