Callboard vs Sliqagenda
Callboard
callboardhq.comSliqagenda
sliqagenda.comSide by side
| Figure | Callboard | Sliqagenda |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 1 | 3 |
| Spec score · Event Scheduling Software | 8.5 (#5) | 6.9 (#32) |
| Intended users | Callboard describes itself as speaker and CFP management for events, covering the workflow from public submissions through organizers, reviewers and speakers. | The About page describes the product as suitable for local meetups and major international congresses. |
| Purpose | Callboard manages event proposals, reviews, speaker onboarding, agenda planning, and publishing the public schedule. | Sliqagenda turns draft conference programs into interactive, mobile-friendly schedules. |
Plans
Sliqagenda
- Professional€179, paid once
- EnterprisePriced on request
- FreePrice not published
In their own words
Callboard
Callboard is an open-source system for managing event proposals and the work from submission through schedule publication. Organizers can build CFP forms with conditional questions, shared character limits, participant rules and close dates, then route proposals to tracks. Reviewers see their assigned submissions, while organizers can apply weighted scores in two rounds. Accepted speakers use a portal to update session details, upload headshots and materials, finish tasks and read event resources.
For planning, organizers place sessions in rooms and time slots and use a conflict view to spot overlaps. Published schedules can be embedded and provide ordered speaker and co-speaker names, calendar invites, CSV exports and API access. Documented integrations include Accelevents CSV export, optional API push, an Airtable mirror and signed webhooks, with optional Svix delivery. AI abstract triage offers an advisory score and recommendation; it cannot write committee reviews or change submission status. The main application is described as one Cloudflare Worker using D1 and R2. Callboard is self-hosted under the MIT license, at free.
Sliqagenda
Sliqagenda has no write-up on Specifiction yet; its figures are above.