Side by side
SyRF vs Sysrev
Both stand on systematic review software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Web
SyRF provides a free, web-based workflow for preclinical evidence synthesis, with collaboration, screening, and data export. Check its criteria and import limits, and provide PDFs separately if needed.
Visit SyRF Free plan APISelf-hostedWeb
Choose Sysrev for evidence review projects that need flexible inputs, structured extraction, and multiple export formats. Basic offers unlimited public projects and reviewers at no cost. Look to Premium for private projects, analytics, and Auto Labeler, or Enterprise for institutional SSO and other listed institutional options.
Visit SysrevThe facts
| SyRF | Sysrev | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | No |
| Runs on | Web | API, Self-hosted, Web |
| Lowest paid plan | Free or on request | Premium: $50 per member a month |
| Plans published | 1 | 3 |
| Maker | Not published | Not published |
| Website | syrf.org.uk | sysrev.com |
| On systematic review software | #22 of 30 | #18 of 30 |
SyRF: what it does well
- Free online platform.
- Two independent screeners and a third reviewer by default.
- Administrators can export studies and quantitative data.
- Projects can be public or private.
What to know first
- Each project supports only one criteria set.
- Reference imports require deduplicated EndNote Desktop XML or CSV.
- Users must supply PDFs separately for processing and storage.
- Single screening is not recommended for journal-publication reviews.
Sysrev: what it does well
- Projects can review PDFs, abstracts, text, or structured JSON.
- Supports four kinds of data extraction labels.
- Imports records from five listed file formats.
- Exports project data in EndNote XML, Excel, and Parquet.
- Built-in search covers PubMed and OpenAlex.
What to know first
- Imported records cannot be deduplicated.
- Auto-labeler runs require project funds.
- Basic includes public projects only.
- API keys are for Premium and Enterprise users.