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Comparison · Collab
Kagi Search vs SiYuan
A side-by-side editorial comparison of Kagi Search and SiYuan — release velocity, themes, recent moves, and the top alternatives to consider.
Kagi Search vs SiYuan: at a glance
| Feature | Kagi Search | SiYuan |
|---|---|---|
| Sector | Collab | Collab |
| Velocity score | 0.0 | 6.3 |
| Sparks · 30d | 0 | 1 |
| Top themes | privacy-search, ai-assistant, translation, small-web | plugin-system, cli, extensibility, local-first |
| Last editorial update | 1mo ago | 1d ago |
| Website | — | Visit → |
What is Kagi Search?
Expanding from a paid search engine into a privacy-first product family — Translate apps, Small Web platform, Maps.
Kagi is running a wide product surface in lockstep: Search continues weekly bug-fix and lens refinements (academic lens, slop reporting, location settings), Assistant has consolidated into Quick and Research modes with continuous model rotation, Translate has graduated to standalone iOS and Android apps with 248-language support and viral marketing moments (LinkedIn Speak), Small Web has reached 30,000 feeds with browser extensions and mobile apps, and Maps gained a Popular Areas data layer. The first Kagi Hub physical space opened in Belgrade.
What is SiYuan?
SiYuan's 3.7.0 turns the note-taker into a scriptable, extensible platform
SiYuan is converging its long 3.7.0 dev cycle toward release. The cumulative changelog — repeated across many dev builds — centers on a kernel plugin system, a new command-line interface, configurable secrets and variables, a reworked settings UI, and a large batch of database, editor, and mobile refinements. A breaking change now requires an explicit 'serve' subcommand to run the kernel.
Kagi Search vs SiYuan: editorial side-by-side
Kagi Search
0.0COLLAB
Expanding from a paid search engine into a privacy-first product family — Translate apps, Small Web platform, Maps.
◆ Current state
Kagi is running a wide product surface in lockstep: Search continues weekly bug-fix and lens refinements (academic lens, slop reporting, location settings), Assistant has consolidated into Quick and Research modes with continuous model rotation, Translate has graduated to standalone iOS and Android apps with 248-language support and viral marketing moments (LinkedIn Speak), Small Web has reached 30,000 feeds with browser extensions and mobile apps, and Maps gained a Popular Areas data layer. The first Kagi Hub physical space opened in Belgrade.
◆ Where it's heading
Kagi is intentionally turning into a portfolio company — Search alone is no longer the product. Translate's mobile launch and viral moment, Small Web's app and extension push, the Hub physical space, and aggressive Specials partnerships (Windscribe, Addy.io, Notesnook, Ente, EasyOptOuts) suggest a deliberate strategy to be the brand for paying privacy-first internet users across categories. The cadence of bi-weekly changelogs surfacing dozens of community-reported issues suggests a healthy community-driven QA loop that few subscription competitors match.
◆ Prediction
Expect more standalone apps spun out of Kagi's product surface (Maps and News mobile likely next polish targets), additional Hub locations in 2026 to make the physical space a real channel, and continued partnership-stack growth via Specials. Watch for Small Web monetization or creator economics — the platform is large enough now to need a sustainability story.
SiYuan
6.3COLLAB
SiYuan's 3.7.0 turns the note-taker into a scriptable, extensible platform
◆ Current state
SiYuan is converging its long 3.7.0 dev cycle toward release. The cumulative changelog — repeated across many dev builds — centers on a kernel plugin system, a new command-line interface, configurable secrets and variables, a reworked settings UI, and a large batch of database, editor, and mobile refinements. A breaking change now requires an explicit 'serve' subcommand to run the kernel.
◆ Where it's heading
The headline direction is extensibility and automation: a plugin-capable kernel, CLI access, and secrets/variables move SiYuan from a self-contained app toward something developers can script and integrate. The breaking kernel API changes and the new serve subcommand are the cost of that platform shift. Underneath, steady editor/database hardening and broad localization continue.
◆ Prediction
Expect 3.7.0 to ship from the beta line with the plugin system and CLI as its banner features, followed by an ecosystem period of plugins and integrations building on the new kernel APIs. The repeated dev-build entries don't add direction beyond this.
Alternatives to Kagi Search 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 Kagi Search or SiYuan.
Anytype
Anytype's 0.55 cycle is a steady grind on chat, with code blocks the headline
Rocket.Chat
Rocket.Chat is methodically migrating off Meteor DDP toward a REST core
Front
Front is rebuilding the shared inbox around AI agents and omnichannel reach.
Claromentis
Claromentis's feed is secure-AI and compliance thought-leadership, not a release log.
Powell Software
Powell Software's feed is digital-workplace marketing and PR, not release notes.
See all Kagi Search alternatives → · See all SiYuan alternatives →
Recent activity from Kagi Search and SiYuan
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2d agoSiYuanSiYuan 3.7.0-beta.2: secrets/variables, CLI, kernel plugin system ⚡
- 4d agoSiYuan3.7.0 dev build (cumulative pre-release notes)
- 5d agoSiYuan3.7.0 dev15 (cumulative pre-release notes)
- 16d agoSiYuan3.7.0 dev14 (cumulative pre-release notes)
- 16d agoSiYuan3.7.0 dev13 (cumulative pre-release notes)
- 17d agoSiYuan3.7.0 dev12 (cumulative pre-release notes)
- 2mo agoKagi Search- Tuning the Orchestra #
- 3mo agoKagi Search- Small Web Expansion and Translate goes viral # ⚡
- 4mo agoKagi Search- Smoothing the edges #
- 4mo agoKagi Search- Kagi Translate on Android & iOS: translate anything, anywhere # ⚡
- 5mo agoKagi Search- Assistant reliability upgrades and Search refinements #
- 5mo agoKagi Search- New Year tune-up: smoother everything! #
Frequently asked questions
What is the difference between Kagi Search and SiYuan?
They serve adjacent needs but don't currently overlap on shipped themes. SiYuan is currently shipping more aggressively (velocity 6.3 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 Kagi Search better than SiYuan?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. SiYuan is currently shipping more aggressively (velocity 6.3 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 Kagi Search?
Top Kagi Search alternatives in Collab are ranked by recent ship velocity. Browse the "Kagi Search alternatives" section above for the current picks, or visit /alternatives/kagi 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.