OpenRostrum vs Callboard

OpenRostrum9.3Visit Callboard8.7Visit

Higher score OpenRostrum #2 in Speaker Management Software 9.3/10 Free plan Free plan✓ 0 of 6 features Visit OpenRostrum

vs

Callboard #8 in Speaker Management Software 8.7/10 Open source ✓ 0 of 6 features Visit Callboard

• OpenRostrum fits best

  Open-source speaker CRM and scheduling teams

• Callboard fits best

  Open-source CFP and conference-program teams

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Side by side

Feature	OpenRostrum 9.3/10 Visit ↗	Callboard 8.7/10 Visit ↗
At a glance
Editor score	9.3	8.7
Ranking	#2 in Speaker Management Software	#8 in Speaker Management Software
Best for	Open-source speaker CRM and scheduling teams	Open-source CFP and conference-program teams
Pricing model	Free	Free
Starting price	Free plan	Open source
Free plan	✓ (best)	Not checked yet
Free trial	—	—
Deployment	Cloud, Self-hosted	Cloud, Self-hosted
Platforms	Web	Web
Support	Docs, Tickets	Docs
Integrations	3 integrations	3 integrations
Built for	Small business, Mid-market, Enterprise	Small business, Mid-market
Features OpenRostrum 0/6 · Callboard 0/6
Application forms	Not checked yet	Not checked yet
Speaker portal	Not checked yet	Not checked yet
Contract management	Not checked yet	Not checked yet
Travel details	Not checked yet	Not checked yet
Session assignments	Not checked yet	Not checked yet
Email automation	Not checked yet	Not checked yet
Specs
Speaker limit	Not checked yet	Not checked yet
Our review
Pros	Covers speaker CRM, CFPs, proposal decisions, portals, and deliverables Builds conflict-aware agendas with drag-and-drop day-by-room scheduling Publishes schedules and sends calendar invitations with ICS attachments	Conditional CFP forms with track routing and participant rules Weighted multi-round review with assigned reviewer workspaces Agenda, conflict detection, public schedules, API, and integrations
Cons	Focused on conference workflows rather than general event management Self-hosted deployments place infrastructure responsibility on the organization Listed calendar integrations are limited to Gmail, Outlook, and Apple Calendar	Integrations center on Accelevents and Airtable API access is scoped to sessions, speakers, and metadata Self-hosting adds deployment responsibility for the operating team
Our verdict	OpenRostrum is an open-source platform for conference speaker relationships, call-for-speakers workflows, proposal review, presenter coordination, agenda building, and program publishing. It is designed for conference organizers that need… Read the review →	Callboard is open-source software for event organizers running calls for proposals, proposal review, speaker onboarding, agenda planning, and public programme publishing. It fits conference and event teams that need one workflow spanning… Read the review →

Strengths and trade-offs

• OpenRostrum — where it wins

  • Covers speaker CRM, CFPs, proposal decisions, portals, and deliverables
  • Builds conflict-aware agendas with drag-and-drop day-by-room scheduling
  • Publishes schedules and sends calendar invitations with ICS attachments

  Where it doesn't

  • Focused on conference workflows rather than general event management
  • Self-hosted deployments place infrastructure responsibility on the organization
  • Listed calendar integrations are limited to Gmail, Outlook, and Apple Calendar

• Callboard — where it wins

  • Conditional CFP forms with track routing and participant rules
  • Weighted multi-round review with assigned reviewer workspaces
  • Agenda, conflict detection, public schedules, API, and integrations

  Where it doesn't

  • Integrations center on Accelevents and Airtable
  • API access is scoped to sessions, speakers, and metadata
  • Self-hosting adds deployment responsibility for the operating team

• OpenRostrum9.3/10 · Free plan

  An open-source conference workspace spanning CFPs, speakers, schedules, and publishing.

  Visit OpenRostrumFull verdict →
• Callboard8.7/10 · Open source

  A full event-program workflow for teams managing CFPs, speakers, sessions, and schedules.

  Visit CallboardFull verdict →