Side by side
Congressio vs OpenReview
Both stand on event abstract management software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIWeb
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.
Visit Congressio
Free plan APIWeb
Choose OpenReview if your venue needs configurable peer review, reviewer matching, and paper discussion within a free platform. Venues with distinct deadlines and review forms across tracks should plan for a separate venue for each track.
Visit OpenReviewThe facts
| Congressio | OpenReview | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Web | API, Web |
| Lowest paid plan | Standard: $49 a month | Free or on request |
| Plans published | 4 | 1 |
| Maker | Not published | Not published |
| Website | congressio.net | openreview.net |
| On event abstract management software | #7 of 29 | #11 of 29 |
Congressio: 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.
OpenReview: what it does well
- Free paper access and submissions, with no fees.
- Supports multiple review stages and configurable forms.
- Matches reviewers using expertise, bids, and constraints.
- REST API supports workflow automation.
- Web interface and other components are open source.
What to know first
- Organizers must request a venue for team review and deployment.
- Separate track deadlines and review forms require separate venues.
Alternatives to Congressio Alternatives to OpenReview The whole list