Freedom251 › Event Abstract Management Software
Congressio
What Congressio is
Congressio brings conference submissions, peer review, decisions, scheduling, and attendee registration into one platform for academic and non-academic events. Its form builder supports conditional logic, file uploads, and co-author invitations without code. Organizers can auto-assign reviewers, set deadlines, detect conflicts of interest, and use double-blind review. The public program can include attendee agendas, with iCal and PDF exports. Ticket sales through Stripe support tiers, discount codes, add-ons, VAT invoices, and refunds; QR passes can be stored in Apple and Google Wallet and scanned at check-in. Virtual event features include live and on-demand streaming, recordings, e-posters, Q&A, and polls. The free plan allows one active event, 100 submissions, and three team seats. Paid plans start at $49 a month, and a 14-day trial is listed. Online ticket payments accept EUR, GBP, and USD only. The interface is available in English, German, Spanish, French, Italian, and Portuguese. Congressio says data is kept in the European Union and Stripe handles card details.
Who it suits
Congressio suits organizers managing conference submissions, reviews, programs, and attendee registration in one place. It is designed for both academic and non-academic conferences.
What it does well
- Free plan includes one active event.
- Supports double-blind review and conflict detection.
- Offers virtual-event streaming, Q&A, and polls.
- QR passes work with Apple and Google Wallet.
- Interface is available in six languages.
What to know first
- Free plan is limited to 100 submissions.
- Free plan includes only three team seats.
- Online ticket payments support EUR, GBP, and USD only.
- Paid plans start at $49 a month.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | 1 active event · 100 submissions · 3 team seats · forms, review, decisions, program and email | Free |
| Professional | or $1,900/year, billed annually · unlimited active events · unlimited submissions · unlimited team seats · advanced review analytics · custom branding · priority support | $149 a month |
| Standard | or $800/year, billed annually · up to 5 active events · 1,000 submissions · 15 team seats · custom branding · email campaigns and reminders | $49 a month |
| Enterprise | everything in Professional · SSO/SAML · custom contracts and invoicing · dedicated support | On request |
As congressio.net lists them, read 14 Oct 2026. The maker's own page has the final word.
Verdict
Congressio covers conference workflows from submission and review through ticketing and virtual sessions. Its free plan has defined event, submission, and seat limits, and payment currency options are limited to three currencies.
Facts from Congressio's own pages
- AI controls
- Organization administrators can disable AI, set token budgets and edit prompts; features hide when the budget is exhausted. · congressio.net, 14 Oct 2026
- AI implementation
- AI features use Llama models through Groq and are described as advisory drafts requiring human review. · congressio.net, 14 Oct 2026
- Analytics
- Analytics includes submission, decision, acceptance-rate, track and review-coverage metrics plus CSV, Excel and PDF reports. · congressio.net, 14 Oct 2026
- API
- Organization administrators can create scoped API keys for event, submission and registration access, including a registration write endpoint. · congressio.net, 14 Oct 2026
- Audience and languages
- Congressio says it is designed for academic and non-academic conferences, and its interface is available in English, German, Spanish, French, Italian and Portuguese. · congressio.net, 28 Sept 2026
- Audit trail
- The audit log records significant status, tag, decision and reviewer-assignment changes with actor and timestamp. · congressio.net, 14 Oct 2026
- Blind review
- Double-blind mode automatically hides author identities from reviewers. · congressio.net, 14 Oct 2026
- Camera-ready publishing
- Accepted authors can submit final versions and organizers can compile proceedings and optionally mint DOIs. · congressio.net, 14 Oct 2026
- Check-in
- QR passes can be stored in Apple Wallet and Google Wallet and scanned with zone and capacity controls. · congressio.net, 14 Oct 2026
- Data and payments
- The About page says data is kept in the European Union and card details are handled by Stripe rather than stored in Congressio’s systems. · congressio.net, 28 Sept 2026
- Data export
- Attendee registrations export to CSV, while programs export to iCal and PDF; submission and review data remains accessible in the dashboard. · congressio.net, 14 Oct 2026
- Decision workflows
- Chairs can accept, reject or request revisions, collect structured feedback, run rebuttals and use meta-reviews across rounds. · congressio.net, 14 Oct 2026
- Documentation depth
- The documentation covers organizer setup, review, registration, programs, communications, AI governance, analytics, billing, API/webhooks and participant workflows. · congressio.net, 14 Oct 2026
- Education credits
- CPD/CME credit hours, badge-scan attendance recording and automatic certificates are supported. · congressio.net, 14 Oct 2026
- Email tools
- Editable templates, automatic triggers, one-off campaigns, reminders and delivery tracking are available. · congressio.net, 14 Oct 2026
- Enterprise features
- Enterprise adds white-label landing pages, custom domains, higher limits, SSO/SAML, custom contracts and dedicated support. · congressio.net, 14 Oct 2026
- Event access
- QR passes can be stored in Apple and Google Wallet and scanned at check-in, with zones gated by ticket tier or capacity. · congressio.net, 28 Sept 2026
- Form builder
- A drag-and-drop builder supports conditional logic, file uploads and co-author invitations without coding. · congressio.net, 14 Oct 2026
- Form field types
- Documentation says submission, review, decision and registration forms support 27 field types. · congressio.net, 14 Oct 2026
- Integrations
- The maker describes Stripe payments, Apple and Google Wallet passes, ORCID and institutional single sign-on, and API keys and webhooks for integrating with other systems. · congressio.net, 28 Sept 2026
- Languages
- The interface is offered in English, German, Spanish, French, Italian and Portuguese. · congressio.net, 14 Oct 2026
- Limit: free capacity
- The Free plan is limited to one active event, 100 submissions and three team seats. · congressio.net, 14 Oct 2026
- Limit: no mobile listing
- The maker’s public platform information identifies web and API access and does not list native iOS, Android, Windows, macOS or Linux applications. · congressio.net, 14 Oct 2026
- Limit: unsupported currencies
- Organizers charging tickets in currencies other than EUR, GBP or USD cannot use Congressio online checkout for those tiers. · congressio.net, 14 Oct 2026