Abstrackr vs Catchii
Abstrackr
abstrackr.com
Catchii
catchii.orgSide by side
| Figure | Abstrackr | Catchii |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Plans published | 1 | 2 |
| Spec score · Systematic Review Software | 8.0 (#9) | 7.8 (#18) |
| Spec score · AI Literature Review Software | 8.0 (#12) | 7.9 (#15) |
| Exports | Users can export CSV or RIS files and download a full JSONL export for querying with DuckDB. | Selected records can be exported in formats compatible with EndNote, Zotero or Mendeley, with PDF attachments and a PRISMA flowchart. |
| Purpose | Abstrackr is a citation-screening tool for systematic reviews. | Catchii is a systematic review screening tool for working with large datasets of scientific literature. |
| Support | The site directs users to its community forum for methodology questions and workflow discussions. | Catchii lists [email protected] for general contact and [email protected] for help. |
Plans
In their own words
Abstrackr
Abstrackr is a free web tool for screening citations in systematic reviews. It supports solo work, blinded team screening, pilot rounds, and conflict resolution. After about 100 labels, machine learning ranks remaining citations by predicted relevance. A live PRISMA flow table records screening thresholds, resolved conflicts, exclusion reasons by tag, and analysis of the model’s stop point. Citations can be imported from PubMed, Scopus, or Embase, or uploaded as RIS and CSV files. The service deduplicates records by DOI and PMID and can merge remaining near-duplicates. Results export as CSV or RIS, with a full JSONL download for DuckDB queries. Blinding starts enabled, and changes are logged with user, reason, timestamp, and project snapshots. Member and Leader roles have no stated team-size limit, while reminders arrive 7, 4, and 1 day before deadlines. No installation is needed, and the site directs methodology questions to its community forum.
Catchii
Catchii is a web tool for screening large scientific-literature datasets in systematic reviews. It covers duplicate detection, title-and-abstract screening, full-text analysis, disagreement resolution, data extraction and PRISMA flowchart generation. References can be imported from PubMed, Scopus, Web of Science, OVID databases, CSV files and reference-management software. The duplicate detector identifies records with highly similar titles or abstracts for review. Multiple reviewers can be assigned roles such as reviewer, conflict-resolution reviewer or manager, and screening works offline on computers, tablets and smartphones. Customizable grouped, color-coded keywords mark inclusion, exclusion or topic terms. The Auto Reviewer uses AI to assist first-phase decisions with inclusion or exclusion explanations; uploaded records are sent to OpenAI for processing. Exports work with EndNote, Zotero or Mendeley and can include PDFs and a PRISMA flowchart. Catchii has a free plan with no subscription fees, trial periods, paid upgrades or advertisements.