HOMER
HOMER patches DuckDB storage reliability and restores multi-value search while fixing admin dashboard sharing
Comparison · Meetings
BigBlueButton vs Fourwaves
A side-by-side editorial comparison of BigBlueButton and Fourwaves — release velocity, themes, recent moves, and the top alternatives to consider.
BigBlueButton vs Fourwaves: 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 Fourwaves?
Fourwaves adds custom domain support for event websites, removing the hosted-subdomain constraint for conference organizers
Fourwaves is shipping consistent weekly improvements to its conference management platform: custom domain mapping for event websites, an auth gate before registration forms, and presentation/participant visibility parity between the mobile app and event website. The platform is also tightening workflow correctness — fixing reviewer workload counts in assignment confirmation and fixing raw markup in bio rendering.
BigBlueButton vs Fourwaves: 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.
Fourwaves
6.3MEETINGS
Fourwaves adds custom domain support for event websites, removing the hosted-subdomain constraint for conference organizers
◆ Current state
Fourwaves is shipping consistent weekly improvements to its conference management platform: custom domain mapping for event websites, an auth gate before registration forms, and presentation/participant visibility parity between the mobile app and event website. The platform is also tightening workflow correctness — fixing reviewer workload counts in assignment confirmation and fixing raw markup in bio rendering.
◆ Where it's heading
Custom domain support moves Fourwaves toward white-label territory — event organizers can now present a fully branded web presence without the hosted subdomain being visible. The sign-in gate before forms suggests the platform is building more secure, verifiable attendee flows. Together these point to a push up-market toward professional and academic conference organizers.
◆ Prediction
Following custom domains, additional white-label features such as branded emails and registration confirmations, or improvements to the abstract submission and review workflow, are the most likely next moves.
Alternatives to BigBlueButton and Fourwaves
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 Fourwaves.
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.
Greenlight
Greenlight 3.9 makes URL_HOST mandatory, forcing admin action on every self-hosted deployment.
See all BigBlueButton alternatives → · See all Fourwaves alternatives →
Recent activity from BigBlueButton and Fourwaves
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoFourwavesApp view now matches event website for presentations and sessions
- 3d agoFourwavesSeptember 13, 2026
- 4d agoBigBlueButtonBigBlueButton 4.0-rc.3: LiveKit resilience hardening, configurable whiteboard zoom
- 5d agoFourwavesOrganizers can now connect their own domain to event websites ⚡
- 5d agoBigBlueButtonBigBlueButton 4.0-rc.2: security fixes — update immediately
- 6d agoFourwavesSeptember 10, 2026
- 7d agoFourwavesSeptember 9, 2026
- 8d agoFourwavesSeptember 8, 2026
- 14d 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
Frequently asked questions
What is the difference between BigBlueButton and Fourwaves?
They serve adjacent needs but don't currently overlap on shipped themes. BigBlueButton and Fourwaves 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 BigBlueButton better than Fourwaves?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. BigBlueButton and Fourwaves 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 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 Fourwaves?
Top Fourwaves alternatives in Meetings are ranked by recent ship velocity. Browse the "Fourwaves alternatives" section above for the current picks, or visit /alternatives/fourwaves for the full list with editorial commentary on each.