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Comparison · Meetings
BigBlueButton vs Lark
A side-by-side editorial comparison of BigBlueButton and Lark — release velocity, themes, recent moves, and the top alternatives to consider.
BigBlueButton vs Lark: at a glance
What is BigBlueButton?
BigBlueButton 4.0 enters release candidate with LiveKit fully replacing the legacy audio stack.
BigBlueButton is in its final stretch to 4.0 GA, with three release candidates shipping in September 2026. The 4.0 release is a near-complete architectural rebuild: LiveKit has replaced SIP.js and mediasoup as the default media transport, BlockNote replaced the old shared notes engine, and the mobile layout was overhauled. RC2 shipped security fixes for a cross-meeting presentation injection vulnerability, urging immediate admin updates.
What is Lark?
Lark concentrates monthly updates on Base — automation branching, mobile dashboards, layout reset — while the collaboration suite holds steady.
Lark's monthly update cadence is centered on Lark Base, the suite's no-code data tool. V7.65 adds advanced formatting and branch settings to Base automations; V7.64 makes dashboard charts interactive on the mobile app; V7.62 ships one-click reset for custom Base record detail page layouts; V7.63 introduces AHA PC Doctor as an in-app self-service troubleshooter. V7.60 polishes image highlights in comments and V7.59 expands message-sending options in Base automated workflows.
BigBlueButton vs Lark: editorial side-by-side
BigBlueButton
6.3MEETINGS
BigBlueButton 4.0 enters release candidate with LiveKit fully replacing the legacy audio stack.
◆ Current state
BigBlueButton is in its final stretch to 4.0 GA, with three release candidates shipping in September 2026. The 4.0 release is a near-complete architectural rebuild: LiveKit has replaced SIP.js and mediasoup as the default media transport, BlockNote replaced the old shared notes engine, and the mobile layout was overhauled. RC2 shipped security fixes for a cross-meeting presentation injection vulnerability, urging immediate admin updates.
◆ Where it's heading
The LiveKit migration that began in 3.x security patches has culminated in rc.1's 'LiveKit as audio state source' refactor — the legacy audio path is gone. Multi-room sessions with membership-based tokens and automatic token refresh enable scenarios (breakout listen-in, large conferences) that the old bridge couldn't cleanly support. A 4.0 GA release is imminent given the RC cadence.
◆ Prediction
4.0 GA will ship within 2-3 weeks based on the RC pace. Post-GA focus will shift to hardening the LiveKit multi-room session model and expanding BlockNote capabilities (Markdown export landed in beta.4; more collaborative editing features likely next). The successful migration may influence other open-source video conferencing projects still running legacy SFU stacks.
Lark
0.0MEETINGS
Lark concentrates monthly updates on Base — automation branching, mobile dashboards, layout reset — while the collaboration suite holds steady.
◆ Current state
Lark's monthly update cadence is centered on Lark Base, the suite's no-code data tool. V7.65 adds advanced formatting and branch settings to Base automations; V7.64 makes dashboard charts interactive on the mobile app; V7.62 ships one-click reset for custom Base record detail page layouts; V7.63 introduces AHA PC Doctor as an in-app self-service troubleshooter. V7.60 polishes image highlights in comments and V7.59 expands message-sending options in Base automated workflows.
◆ Where it's heading
Lark is investing heavily in Base's automation depth and admin ergonomics — branch settings, granular automation triggers, mobile-first dashboard interaction, layout management. Earlier versions in the index (V7.51 AI in Base, V7.55 new workspaces, V7.58 condition-group permissions) confirm Base as the consistent center of feature work. The broader collaboration suite (chat, docs, calendar) is held steady while Base evolves.
◆ Prediction
Expect more agentic AI inside Base (extending the V7.51 thread), continued mobile parity with desktop dashboards, and deeper automation features — multi-step branching with conditions, more third-party connectors. Self-service support (PC Doctor) is likely to expand to mobile and Mac.
Alternatives to BigBlueButton and Lark
Other Meetings 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 BigBlueButton or Lark.
Fourwaves
Fourwaves adds custom domain support for event websites, removing the hosted-subdomain constraint for conference organizers
JW Player
JW Player automates CMAF rendition ladders and sharpens ad attribution by player and placement
Nextcloud Talk Desktop
Nextcloud Talk Desktop is approaching Talk v25 stable while its July managed-config feature unlocks enterprise mass deployment for the first time.
Nextcloud Talk
Nextcloud Talk v25 adds classified conversations and an owner role, targeting regulated enterprise deployments.
Element Call
Element Call is removing its legacy architecture — the federated multi-SFU model is now the only option.
See all BigBlueButton alternatives → · See all Lark alternatives →
Recent activity from BigBlueButton and Lark
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 5d agoBigBlueButtonBigBlueButton 4.0-rc.3: LiveKit resilience hardening, configurable whiteboard zoom
- 5d agoBigBlueButtonBigBlueButton 4.0-rc.2: security fixes — update immediately
- 15d agoBigBlueButtonBigBlueButton 4.0-rc.1: LiveKit becomes sole audio source, multi-room sessions land ⚡
- 1mo agoBigBlueButtonBigBlueButton 4.0-beta.5: mobile layout rebuilt, dark mode auto-switch, audio settings
- 1mo agoBigBlueButtonBigBlueButton 4.0-beta.4: LiveKit default (SIP.js removed), BlockNote default, Java 21 ⚡
- 3mo agoBigBlueButtonBigBlueButton 4.0-beta.3: Unified layout default, WASM audio processor, user search
- 5mo agoLark• V7.65 More advanced formatting and branch settings for Base automations!
- 5mo agoLark• V7.64 Interact with dashboard charts on the mobile app!
- 6mo agoLark• V7.62 Reset layout for custom Base record details pages in one click
- 6mo agoLark• V7.63 AHA PC Doctor is now available to help you resolve common issues easily!
- 7mo agoLark• V7.60 Eliminate confusion with image highlights in comments!
- 8mo agoLark• V7.59 More advanced options for sending messages using automated workflows in Base
Frequently asked questions
What is the difference between BigBlueButton and Lark?
They serve adjacent needs but don't currently overlap on shipped themes. BigBlueButton 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 BigBlueButton better than Lark?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. BigBlueButton 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 Meetings products to evaluate alongside.
What are the best alternatives to BigBlueButton?
Top BigBlueButton alternatives in Meetings are ranked by recent ship velocity. Browse the "BigBlueButton alternatives" section above for the current picks, or visit /alternatives/bigbluebutton for the full list with editorial commentary on each.
What are the best alternatives to Lark?
Top Lark alternatives in Meetings are ranked by recent ship velocity. Browse the "Lark alternatives" section above for the current picks, or visit /alternatives/lark for the full list with editorial commentary on each.