Sessionize is call for papers, schedule and speaker management. Conferencer is free, open-source software for the same job — the call, the review, the decisions, the onboarding, the agenda and the public site — that you run yourself.
What it costs
Conferencer
$0, always
MIT licensed and self-hosted: no plan, no per-event fee, no limit on submissions, no share of your revenue. Your only bill is the box it runs on, and a $5 VPS covers it.
What Sessionize is
Sessionize is a hosted call-for-papers and speaker-management tool built around a large public speaker directory: speakers keep a profile on Sessionize and reuse it to submit to any event on the platform. It also builds the schedule and ships a mobile and web app for attendees.
Who it is for: Community and professional tech conferences, and agencies running many events.
Side by side
The Sessionize column states only what their own public pages state; the sources are linked at the foot of the page. The Conferencer column is checkable in the repository.
Published price
Conferencer$0 — MIT licensed, no plans, no per-event fee
Sessionize$499 + tax per event occurrence; free for eligible community events
Free for commercial events
ConferencerYes — any event, any size
SessionizeNo — the free tier excludes commercial, private and internal events
Self-hosted
ConferencerYes — one container, one SQLite file, Node 22+
SessionizeNo — hosted only
Call for speakers
Conferencer14 field types, show-when logic, saved drafts, per-person limits, close dates
SessionizeCustomizable submission page, session and speaker tagging
Committee review
ConferencerMulti-round plans, anonymized rounds, 8 scorecard types, conflict-of-interest recusal, auto-distribution with caps
SessionizeSubmission evaluation tools for the content team
Speaker onboarding
ConferencerOnboarding tasks, versioned file requests, a deliverables matrix, a speaker portal
SessionizeA smart task list and unlimited mailings to accepted speakers
Agenda
ConferencerRooms grid with drag-and-drop, blocked room clashes, speaker-clash warnings, publish diff
SessionizeDrag-and-drop schedule builder with session coloring
Public site
ConferencerA full public site — sessions, speakers, agenda, itinerary, gallery, personal .ics schedule — no login
SessionizeAn event web and mobile app, plus a copy-paste embed
Speaker network
ConferencerYour own CRM across your own events
SessionizeA public directory of speakers across all Sessionize events
Getting started
ConferencerClone, npm run seed, and click around a real demo conference
SessionizeLog in and try every feature in test mode
Where Sessionize is genuinely better
Where Conferencer differs
Sources for every claim about Sessionize on this page, read on 12 August 2026: sessionize.com/pricing · sessionize.com. If a figure here has gone stale, the linked page is the truth.