Rayyan vs Connected Papers

A detailed comparison to help you choose between Rayyan and Connected Papers.

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How to choose

Neither tool has user reviews on ToolSpotter yet, so we don't pick a winner. Compare them on what they're built for: Rayyan — Health and evidence-synthesis teams — from student pairs to institutional units — running collaborative blinded screening for systematic reviews and meta-analyses.; Connected Papers — Researchers at any level who want to map the literature around a known paper before committing reading time — from supervisors skimming a field to doctoral students building a reading list..

Rayyan

Rayyan

AI systematic review tool for researchers

Connected Papers

Connected Papers

Visual academic paper network explorer

Rating4.2 (1 review)4.2 (1 review)
Pricing Modelfreemiumfreemium
Starting PriceFree tier availableFree tier available
Best ForHealth and evidence-synthesis teams — from student pairs to institutional units — running collaborative blinded screening for systematic reviews and meta-analyses.Researchers at any level who want to map the literature around a known paper before committing reading time — from supervisors skimming a field to doctoral students building a reading list.
Free Tier
API Access
Team Features
Open Source
Tags
free tierteam features
free tier
Visit Rayyan →Visit Connected Papers →

Rayyan

Pros

  • + Zero-shot AI relevance predictions genuinely reorder the screening queue — relevance ranking appeared within seconds of import in my testing with no training examples
  • + Blinded duplicate screening with conflict resolution and dedup that caught conference-abstract/journal-article near-duplicates my DOI pass missed
  • + Workable free tier: 3 active reviews, 2 reviewers, duplicate detection and AI predictions included — enough for a real first review
  • + PRISMA flow diagram generation (Essential+) saves hours of manual diagramming per review
  • + Cheap paid seats — $4.99/seat/month billed annually per third-party listings, $8.33/month billed quarterly per rayyan.ai at time of writing

Cons

  • - AI predictions prioritize the queue but must not replace human duplicate screening decisions — no trustworthy auto-inclusion
  • - Not a literature-search tool: does not run database searches or find studies for you
  • - Advanced form customization and branching logic are thinner than DistillerSR/EPPI-Reviewer-class enterprise tools
  • - Healthcare/medical-first user base and templates; other fields work but the community flavor is clinical
  • - Pricing signals conflict across third-party listings versus the vendor page — verify before budgeting
View full Rayyanreview →

Connected Papers

Pros

  • + Co-citation and bibliographic coupling surfaced conceptually adjacent papers that plain citation tracing missed in my field-mapping runs
  • + Five full graphs per month free with every feature included and no account required to start
  • + Academic plan at $6/month (at time of writing) with unlimited graphs is among the cheapest paid upgrades in academic software
  • + Prior Works and Derivative Works views gave me the field's foundations and its current frontier in two clicks
  • + Scholarship program exists for researchers who cannot pay — email the team for a discounted or free plan

Cons

  • - Five free graphs disappears in one review afternoon; the free tier is a demo with monthly resets for active researchers
  • - Graphs seeded from very recent papers are sparse — co-citation signal needs time and citations to accumulate
  • - Shows relatedness only: no summaries, no quality judgment, and no reproducible search for PRISMA-style reviews
  • - Coverage inherits Semantic Scholar's gaps — humanities, law, non-English and grey literature are thin or absent
  • - No alerts for new matching papers, no API, no app, and BibTeX download as the only export
View full Connected Papersreview →

Frequently Asked Questions

Which is better, Rayyan or Connected Papers?▼
It depends on your specific needs — neither tool has user reviews on ToolSpotter yet, so we don't rank one above the other. Rayyan is best for: Health and evidence-synthesis teams — from student pairs to institutional units — running collaborative blinded screening for systematic reviews and meta-analyses.. Connected Papers is best for: Researchers at any level who want to map the literature around a known paper before committing reading time — from supervisors skimming a field to doctoral students building a reading list..
What is the difference between Rayyan and Connected Papers?▼
Rayyan: Rayyan helps research teams screen and sort citations for systematic literature reviews, with collaborative inclusion and exclusion decisions. Connected Papers: Connected Papers builds a visual graph of papers related to one you already have, to find prior and derivative work in a field.
Is Rayyan or Connected Papers more affordable?▼
Rayyan starts at €0/mo, Connected Papers starts at €0/mo. Check the comparison table above for current pricing.

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