Zotero vs Paperguide vs ResearchRabbit vs Litmaps
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
Zotero
Free, open-source reference manager from a nonprofit
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Paperguide
AI research workspace for literature search and systematic reviews
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ResearchRabbit
Citation-network paper discovery from seed papers, now part of Litmaps
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Litmaps
Citation maps and new-paper alerts built from your seed papers
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| RECATOOLS Score | 8.4 / 10 | 6.8 / 10 | 7.7 / 10 | 7 / 10 |
| Capability | ||||
| Value for money | ||||
| Ease of use | ||||
| ASEAN readiness | ||||
| API quality | ||||
| Pricing | Open Source | Freemium | Freemium | Freemium |
| Free tier | Full app free and open source (AGPL-3.0) on desktop, iOS and Android; unlimited data sync; 300 MB file storage; WebDAV for files; 2 hrs/month standard Read Aloud voices | Free plan: 2,000 AI credits a month, limited reference manager and AI searches, and 10 Search API requests | Free forever: unlimited searches over 310M+ articles, up to 50 seed articles, unlimited collections, sharing, Zotero import, BibTeX import/export | Free plan: up to 20 search inputs, 100 articles per map, 1–2 maps (the page states both), monthly alert summary |
| Paid from | $20/year for 2 GB cloud file storage | $12/seat/month (Plus, billed yearly), or $19 billed monthly | RR+ $10/mo billed annually ($120/yr); $12.50 billed monthly | $10/month Pro, academic rate billed annually ($120/yr); $12.50 billed monthly |
| Has API | ✓ | ✓ | ✗ | ✗ |
| Open source | ✓ | ✗ | ✗ | ✗ |
| Free to use | ✓ | ✓ | ✓ | ✓ |
| Users | — | — | 1m+ researchers | 100k+ researchers |
| Founded | 2006 | 2023 | — | 2020 |
| Maker | Corporation for Digital Scholarship (Digital Scholar) | — | Litmaps (Litmap Limited, New Zealand) | Jake Chandler, Daniel Johnston |
| Verdict | Zotero remains the open-source benchmark for reference management: free on desktop, iOS and Android, with one-click browser capture, a built-in PDF and EPUB reader, and citation plugins for Word, LibreOffice and Google D... |
Paperguide puts literature search, a reference manager, data extraction, a research agent and an AI writer in one workspace, and its newer Systematic Review module adds dual-reviewer PRISMA screening where the AI prepare... |
ResearchRabbit remains one of the friendliest ways to explore a research literature through its citation links, with a genuinely useful free plan and discounted pricing across much of Southeast Asia. Since Litmaps bought... |
Litmaps is good at the expanding-outward stage of a literature review: give it a few seed papers and it maps what they cite, what cites them and what is new, then keeps alerting you as the field moves. It also owns Resea... |
| Full review → | Full review → | Directory listing → | Directory listing → |
Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.