Litmaps vs Paperguide vs Research Rabbit vs Zotero
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
Litmaps
Discover related research with citation-graph mapping
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Paperguide
AI research assistant with semantic paper search
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Research Rabbit
Visual citation-network mapper for papers — still free, now has RR+.
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Zotero
Open-source reference manager
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| RECATOOLS Score | 7 / 10 | 6.8 / 10 | 7.7 / 10 | 8.4 / 10 |
| Capability | ||||
| Value for money | ||||
| Ease of use | ||||
| ASEAN readiness | ||||
| API quality | ||||
| Pricing | Freemium | Freemium | Free | Open Source |
| Free tier | 3 maps with 200 papers each | — | Full access for free | — |
| Paid from | $10/month (Researcher) | — | — | — |
| Has API | ✗ | ✗ | ✗ | ✓ |
| Open source | ✗ | ✗ | ✗ | ✓ |
| Free to use | ✗ | ✗ | ✓ | ✓ |
| Users | 100k+ researchers | — | 1m+ researchers | — |
| Founded | 2016 | 2023 | 2021 | 2006 |
| Maker | University of Otago | — | Riley Davis, Timothy Chang | — |
| Verdict | Litmaps maps citation networks so you can see how papers connect, spot the seminal ones, and catch new work as it publishes — handy for systematic reviews and expanding out from a handful of seed papers. The bigger 2026... |
Paperguide bundles AI literature search, citation-backed answers, a reference manager and an academic writing assistant over a large paper database, putting several research workflows in one tool. The free tier is unusua... |
Research Rabbit maps citation networks, co-authorship, and topic timelines around any paper, and for years operated as a fully free public good for researchers. That changed on October 30, 2025: a redesign kept the core... |
Zotero is the open-source benchmark for reference management: free, no account tier required to use the core app, with one-click capture from the browser, automatic metadata extraction, a deep citation-style library, and... |
| Full review → | Full review → | Full review → | Full review → |
Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.