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Comparison · Meetings
Fourwaves vs Kaltura
A side-by-side editorial comparison of Fourwaves and Kaltura — release velocity, themes, recent moves, and the top alternatives to consider.
Fourwaves vs Kaltura: at a glance
What is Fourwaves?
Fourwaves replaces per-event pricing with an annual submission model and lets organizers connect custom domains to event websites.
Fourwaves is shipping daily in September 2026, with two substantive changes among the UX polish: a full pricing model restructure (September 17) and custom domain support for event websites (September 11). The pricing change removes per-event limits and add-ons, replacing them with a yearly submission cap and unlimited events. This shifts how recurring event organizers budget for the product — variable per-event costs become a single annual line item.
What is Kaltura?
Kaltura goes all-in on agentic AI video — Event OS, avatar roleplay, and an open-sourced AI Agent Skills suite.
Kaltura is in the middle of a sharp pivot toward agentic AI for rich-media platforms. In a single month it has open-sourced an AI Agent Skills suite (so any third-party AI agent can build rich-media experiences), introduced Event OS for AI Agents (natural-language event creation and orchestration), unveiled an avatar-powered roleplay solution for enterprise training, and is presenting an Agentic Revenue Engagement Platform at Forrester. The releases are tightly aligned around one thesis.
Fourwaves vs Kaltura: editorial side-by-side
Fourwaves
6.3MEETINGS
Fourwaves replaces per-event pricing with an annual submission model and lets organizers connect custom domains to event websites.
◆ Current state
Fourwaves is shipping daily in September 2026, with two substantive changes among the UX polish: a full pricing model restructure (September 17) and custom domain support for event websites (September 11). The pricing change removes per-event limits and add-ons, replacing them with a yearly submission cap and unlimited events. This shifts how recurring event organizers budget for the product — variable per-event costs become a single annual line item.
◆ Where it's heading
The combination of custom domains, the account restructure, and the new pricing model points toward Fourwaves targeting organizations that run events repeatedly throughout the year — academic departments, conference series, professional associations. Unlimited events with a submission cap maps precisely onto that use case: many events, bounded total submissions. The preview parity between organizer and attendee views and the login gate added to registration forms (September 8) are both moves toward a more controlled, enterprise-ready submission workflow.
◆ Prediction
Custom domain support for event websites will likely be paired with branded email sender configuration — organizations running events under their own domain will want outbound emails to match. That is the logical completion of the white-label offering.
Kaltura
8.8MEETINGS
Kaltura goes all-in on agentic AI video — Event OS, avatar roleplay, and an open-sourced AI Agent Skills suite.
◆ Current state
Kaltura is in the middle of a sharp pivot toward agentic AI for rich-media platforms. In a single month it has open-sourced an AI Agent Skills suite (so any third-party AI agent can build rich-media experiences), introduced Event OS for AI Agents (natural-language event creation and orchestration), unveiled an avatar-powered roleplay solution for enterprise training, and is presenting an Agentic Revenue Engagement Platform at Forrester. The releases are tightly aligned around one thesis.
◆ Where it's heading
The arc is clearly from a video platform into an agentic-AI orchestration layer that happens to specialize in video. Kaltura is staking out the position that video, events, training, and revenue engagement should all be run through AI agents talking to its platform — and is willing to open-source the agent-skills layer to make Kaltura the default endpoint for rich-media agents.
◆ Prediction
Expect a paid agent runtime or pricing model on top of the open-sourced skills, deeper avatar/roleplay options for enterprise L&D, and Event OS plug-ins for major collaboration platforms (Teams, Slack, Google Workspace). The next big tell will be how serious enterprise adoption of Event OS becomes versus staying a demo-stage capability.
Alternatives to Fourwaves and Kaltura
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 Fourwaves or Kaltura.
Restream
Restream deepening X integration and adding Slack as a live streaming destination
JW Player
JW Player expands ad analytics and vertical video while hardening mobile SDKs
Element Call
Element Call drops MatrixRTC legacy mode entirely, betting the entire call stack on the multi-SFU protocol.
Nextcloud Talk Desktop
Nextcloud Talk Desktop 2.3.2 ships Talk v25 stable with E2EE call audio fix
BigBlueButton
BigBlueButton 4.0 enters release candidate with LiveKit fully replacing the legacy audio stack.
See all Fourwaves alternatives → · See all Kaltura alternatives →
Recent activity from Fourwaves and Kaltura
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 7d agoFourwavesAccount page reorganized into Profile and Password tabs
- 9d agoFourwavesNew pricing: annual submission limit replaces per-event fees ⚡
- 10d agoFourwavesDomain configuration page restyled to match settings UI
- 11d agoFourwavesOrganizer preview now matches attendee-facing event website
- 13d agoFourwavesReview assignment confirmation now respects reviewer workload cap
- 15d agoFourwavesOrganizers can now connect a custom domain to their event website
- 4mo agoKalturaKaltura Open-Sources Suite of AI Agent Skills, Enabling Any AI Agent to Build Intelligent Rich-Media Digital Experiences ⚡
- 5mo agoKalturaKaltura Introduces Event OS for AI Agents, Enabling Organizations to Create and Orchestrate Events Through Natural-Language Conversation ⚡
- 5mo agoKalturaKaltura Introduces Event OS for AI Agents, Enabling Organizations to Create and Orchestrate Events Through Natural-Language Conversation
- 5mo agoKalturaKaltura Unveils Avatar-Powered Roleplay Solution for Enterprise Training and Simulations ⚡
- 5mo agoKalturaKaltura Unveils Avatar-Powered Roleplay Solution for Enterprise Training and Simulations
- 5mo agoKalturaKaltura to Present Agentic Revenue Engagement Platform at Forrester B2B Summit 2026, Showcasing the Shift From Static Content Publishing to Intent-Aware, AI-Powered Buyer Journeys
Frequently asked questions
What is the difference between Fourwaves and Kaltura?
They serve adjacent needs but don't currently overlap on shipped themes. Kaltura is currently shipping more aggressively (velocity 8.8 vs 6.3), with 0 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 Fourwaves better than Kaltura?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Kaltura is currently shipping more aggressively (velocity 8.8 vs 6.3), with 0 editorial sparks in the last 30 days against 1. For your specific use case, the alternatives sections above list other Meetings products to evaluate alongside.
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.
What are the best alternatives to Kaltura?
Top Kaltura alternatives in Meetings are ranked by recent ship velocity. Browse the "Kaltura alternatives" section above for the current picks, or visit /alternatives/kaltura for the full list with editorial commentary on each.