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Comparison · Meetings

Fourwaves vs Greenlight

A side-by-side editorial comparison of Fourwaves and Greenlight — release velocity, themes, recent moves, and the top alternatives to consider.

Fourwaves vs Greenlight: at a glance

FeatureFourwavesGreenlight
SectorMeetingsMeetings
Velocity score5.02.5
Sparks · 30d00
Top themesevent management, peer review, submissions, plansvideo-conferencing, bigbluebutton, self-hosted, security
Last editorial update12h ago4d ago
WebsiteVisit →Visit →

What is Fourwaves?

Fourwaves doubles Free plan submissions to 50 and reworks reviewer assignment.

Fourwaves ships small dated updates most days. November 11 raised the Free plan from 25 to 50 submissions, and November 12 added a four-step Assign reviewers window. Earlier in November it brought offline mobile check-in for Pro organizers and saved email templates for Advanced and Pro.

Read the full Fourwaves trajectory →

What is Greenlight?

Greenlight 3.9.1 fixes a critical upload flaw and tells admins to rotate secrets.

Greenlight, the BigBlueButton web frontend, released 3.9.1 on Nov 5 to fix a critical flaw: through a Rails Active Storage issue, a user able to upload an avatar or presentation could read or write files on the server. The fix comes from Rails 8.0.5.2's stricter ImageMagick policy, and instances storing uploads on local disk are told to rotate SECRET_KEY_BASE, database, BigBlueButton and other credentials.

Read the full Greenlight trajectory →

Fourwaves vs Greenlight: editorial side-by-side

F
Fourwaves
MEETINGS
5.0

Fourwaves doubles Free plan submissions to 50 and reworks reviewer assignment.

◆ Current state

Fourwaves ships small dated updates most days. November 11 raised the Free plan from 25 to 50 submissions, and November 12 added a four-step Assign reviewers window. Earlier in November it brought offline mobile check-in for Pro organizers and saved email templates for Advanced and Pro.

◆ Where it's heading

Most releases go to organizer tools for running the event and the review process, with features gated to paid plans. The Free plan increase is the first move in this run that widens the entry tier rather than adding to paid ones.

◆ Prediction

Expect more steps in the submission and review workflow to follow the new reviewer window; whether the Free plan change is part of a wider pricing revision is unclear from the entries.

G
Greenlight
MEETINGS
2.5

Greenlight 3.9.1 fixes a critical upload flaw and tells admins to rotate secrets.

◆ Current state

Greenlight, the BigBlueButton web frontend, released 3.9.1 on Nov 5 to fix a critical flaw: through a Rails Active Storage issue, a user able to upload an avatar or presentation could read or write files on the server. The fix comes from Rails 8.0.5.2's stricter ImageMagick policy, and instances storing uploads on local disk are told to rotate SECRET_KEY_BASE, database, BigBlueButton and other credentials.

◆ Where it's heading

The project remains in security maintenance: gem updates, a breaking URL_HOST requirement in 3.9.0 and now an urgent patch. Feature work has been rare since the invitation changes in April.

◆ Prediction

Expect more dependency-driven security releases; new features look unlikely from the recent pattern.

Alternatives to Fourwaves and Greenlight

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 Greenlight.

See all Fourwaves alternatives → · See all Greenlight alternatives →

Recent activity from Fourwaves and Greenlight

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 2d agoFourwavesNew four-step window for assigning reviewers
  2. 3d agoFourwavesFree plan now includes 50 submissions, up from 25
  3. 4d agoFourwavesOffline mobile check-in for Pro organizers
  4. 5d agoFourwavesParticipant pages show the same data to organizers
  5. 8d agoGreenlightGreenlight 3.9.1 fixes critical file read/write via uploads
  6. 9d agoFourwavesSaved email templates for Advanced and Pro organizers
  7. 10d agoFourwavesAustralia/Sydney added as a reference timezone
  8. 2mo agoGreenlightGreenlight 3.9.0.1: startup crash hotfix
  9. 2mo agoGreenlightGreenlight 3.9.0: mandatory URL_HOST and undisclosed security fixes
  10. 3mo agoGreenlightGreenlight 3.8.2.4: security gem updates
  11. 6mo agoGreenlightGreenlight 3.8.2.3: security updates and translations
  12. 6mo agoGreenlightGreenlight 3.8.2.2: HTML support in maintenance banner

Frequently asked questions

What is the difference between Fourwaves and Greenlight?

They serve adjacent needs but don't currently overlap on shipped themes. Fourwaves is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 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 Fourwaves better than Greenlight?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Fourwaves is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 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 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 Greenlight?

Top Greenlight alternatives in Meetings are ranked by recent ship velocity. Browse the "Greenlight alternatives" section above for the current picks, or visit /alternatives/greenlight for the full list with editorial commentary on each.