Mapped vs the alternatives
An honest, side-by-side comparison of mapped against Covidence, Rayyan, RevMan, and EPPI-Reviewer across the systematic-review workflow. We acknowledge each tool's genuine strengths — pick the one that fits your work, not the one with the loudest marketing.
Updated April 2026
Screening + extraction tool
Mapped vs Covidence
Covidence is the most-cited screening tool in the systematic-review literature, with a polished dual-reviewer workflow that's been refined over a decade. For teams whose review consists almost entirely of screening and basic extraction, it's a solid, focused choice.
| Workflow step | Mapped | Covidence |
|---|---|---|
| Research-question validation (PICOS, gap analysis, PROSPERO) | Yes: 8-stage VALIDATION + Word feasibility report | No: Not in scope |
| Multi-database literature search (10+ databases) | Yes: PubMed, Cochrane, Scopus, Embase, +6 | No: Bring-your-own results |
| Title/abstract + full-text screening (dual-reviewer) | Yes: Blinded, Cohen's kappa IRR | Yes: Strong, mature workflow |
| AI-assisted screening | Yes: Classification Engine, confidence-tiered | Limited: AI-assist add-on |
| Data extraction from PDFs | Yes: Multimodal Engine + scanned-PDF + Sheets sync | Yes: Template-based; manual transcription |
| Risk of bias (8 tools incl. RoB 2 Cluster, ROBINS-E, QUIPS, AMSTAR 2) | Yes: 8 validated tools, AI-drafted judgments | Limited: RoB 2 only |
| Meta-analysis (incl. DTA, NMA, GOSH, Baujat) | Yes: R engine, 13 plot types, 600 DPI | No: Export to RevMan/Stata |
| GRADE assessment + Summary of Findings | Yes: Per-outcome, auto-pulled from RoB + meta | No: External tool |
| AI manuscript drafting (PRISMA 2020) | Yes: 13-section drafts, 7 journal presets | No: Out of scope |
Mapped pricing
Free · Mapped Project $119/project (launch $79) · Mapped Team $199/project (launch $139) · Custom Enterprise
See mapped pricingCovidence pricing
Free trial · ~$339/year per single review · Institutional plans
See Covidence pricingChoose mapped if…
- You need the full eight-step workflow in one place — search through manuscript
- You're running a meta-analysis (DTA, NMA, or classic intervention)
- You want AI-assisted RoB judgments with quoted source text
- You publish per-project rather than per-year (Mapped Project is $119/project list, currently $79 launch pricing — not $339+/year)
Choose Covidence if…
- Your review is screening-and-extraction only
- Your team already has decade-long Covidence muscle memory
- You handle meta-analysis externally in RevMan or Stata anyway
- Institutional licensing already covers Covidence at zero marginal cost
AI-screening tool
Mapped vs Rayyan
Rayyan pioneered AI-assisted screening for systematic reviews and remains a popular free option. Its keyboard-first screening UI is fast and well-loved, and the free tier is genuinely useful for solo researchers and student projects.
| Workflow step | Mapped | Rayyan |
|---|---|---|
| Research-question validation | Yes: 8-stage VALIDATION score | No: Not in scope |
| Multi-database literature search | Yes: 10+ databases, AI query generation | No: Import-only |
| AI-assisted title/abstract screening | Yes: Classification Engine, confidence-tiered | Yes: Strong, AI-rating filter |
| Full-text screening with eligibility criteria | Yes: PRISMA-compliant, exclusion-reason tracked | Limited: Basic full-text support |
| Dual-reviewer with blinded conflict resolution | Yes: Structurally enforced + Cohen's kappa | Yes: Blinded mode available |
| PDF data extraction | Yes: Multimodal Engine + Google Sheets sync | No: Out of scope |
| Risk of bias assessment | Yes: 8 validated tools | No: Out of scope |
| Meta-analysis | Yes: R-based, DTA + NMA, 13 plot types | No: Out of scope |
| Manuscript drafting | Yes: 13-section drafts, 7 journal presets | No: Out of scope |
Mapped pricing
Free · Mapped Project $119/project (launch $79) · Mapped Team $199/project (launch $139) · Custom Enterprise
See mapped pricingChoose mapped if…
- You want the full review pipeline in one tool — not just screening
- You need risk of bias, meta-analysis, GRADE, or manuscript output
- You're running a DTA or NMA review (Rayyan doesn't cover analysis)
- You'd rather pay per-project than maintain a monthly subscription
Choose Rayyan if…
- You only need screening (you have other tools for the rest)
- Free tier is sufficient and budget is the binding constraint
- You prefer Rayyan's keyboard-first screening UI specifically
- You're a solo researcher or student doing a one-off small review
Cochrane meta-analysis software
Mapped vs RevMan (Cochrane)
RevMan is the de-facto Cochrane tool for systematic reviews and intervention meta-analyses, with deep methodological alignment to Cochrane's own handbook and reviewer expectations. For Cochrane-author teams, it's the canonical workflow.
| Workflow step | Mapped | RevMan (Cochrane) |
|---|---|---|
| Research-question validation | Yes: VALIDATION + PROSPERO + gap analysis | No: External |
| Multi-database search | Yes: 10+ databases simultaneously | No: Bring-your-own |
| Dual-reviewer screening | Yes: Blinded, AI-accelerated | Limited: Light support; teams use Covidence + RevMan |
| Data extraction from PDFs | Yes: AI multimodal extraction | Limited: Manual entry |
| Risk of bias (RoB 2) | Yes: Plus 7 other tools (Cluster, ROBINS-I, ROBINS-E, QUADAS-2, QUIPS, NOS, AMSTAR 2) | Yes: Strong RoB 2 implementation |
| Intervention meta-analysis (forest, funnel) | Yes: Plus DTA, NMA, GOSH, Baujat, drapery | Yes: Excellent for Cochrane-style intervention reviews |
| Diagnostic test accuracy meta-analysis | Yes: Bivariate (mada), SROC, coupled forest | Limited: DTA support limited |
| Network meta-analysis | Yes: netmeta, league tables, rankograms | No: Use external NMA tool |
| GRADE + Summary of Findings | Yes: Per-outcome, auto-pulled from RoB + meta | Limited: Via GRADEpro GDT integration |
| Manuscript drafting | Yes: 13-section drafts, 7 journal presets | Limited: Cochrane-format report |
Mapped pricing
Free · Mapped Project $119/project (launch $79) · Mapped Team $199/project (launch $139) · Custom Enterprise
See mapped pricingRevMan (Cochrane) pricing
Free for non-commercial use · Cochrane authors free · Commercial license required for non-Cochrane commercial use
See RevMan (Cochrane) pricingChoose mapped if…
- You're running DTA or NMA (RevMan's coverage there is limited)
- You want AI-assisted extraction, screening, and manuscript drafting
- Your review will be published outside the Cochrane Library
- You want 13 plot types including GOSH, Baujat, drapery, and funnel variants at 600 DPI
Choose RevMan (Cochrane) if…
- You're authoring a Cochrane Review (RevMan is the canonical workflow)
- Your review is intervention-only and methodologically straightforward
- Your team already has deep RevMan + GRADEpro GDT experience
- Cochrane Editorial Unit acceptance is a hard requirement
Full-pipeline review tool
Mapped vs EPPI-Reviewer
EPPI-Reviewer (UCL) is the most feature-complete academic alternative to mapped — strong qualitative-coding tools, machine-learning classifiers, and a long methodological track record across multiple review types. It's the closest 1:1 alternative on workflow breadth.
| Workflow step | Mapped | EPPI-Reviewer |
|---|---|---|
| Research-question validation | Yes: VALIDATION score, gap analysis, PROSPERO | No: Out of scope |
| Multi-database search | Yes: 10+ databases, AI query generation | Yes: Federated search; manual config |
| Dual-reviewer screening with AI | Yes: Classification Engine, blinded, Cohen's kappa | Yes: ML classifiers, dual-reviewer |
| PDF data extraction | Yes: Multimodal Engine + scanned-PDF + Sheets | Limited: Manual + structured forms |
| Qualitative coding / line-by-line analysis | Limited: Free-text fields, no inductive coding | Yes: Strong qualitative tooling |
| Risk of bias (multiple tools) | Yes: 8 tools, AI-drafted judgments | Yes: Tool catalogue, manual entry |
| Meta-analysis (DTA, NMA, plot variants) | Yes: R engine, 13 plots, 600 DPI exports | Limited: Basic statistical synthesis |
| GRADE assessment | Yes: Per-outcome SoF tables | Limited: External |
| AI manuscript drafting | Yes: 13-section drafts, 7 journal presets | No: Out of scope |
| Cohen's kappa IRR + immutable audit trail | Yes: Built-in, structurally enforced | Yes: IRR + activity log |
Mapped pricing
Free · Mapped Project $119/project (launch $79) · Mapped Team $199/project (launch $139) · Custom Enterprise
See mapped pricingEPPI-Reviewer pricing
~£28–£55 per single user / month · institutional licenses
See EPPI-Reviewer pricingChoose mapped if…
- You're running quantitative reviews (intervention, prognostic, DTA, NMA)
- You want AI-drafted manuscript output that follows PRISMA 2020
- You need 600 DPI publication-ready plots (rainforest, drapery, GOSH, Baujat)
- You'd rather pay per-project than maintain a monthly per-user subscription
Choose EPPI-Reviewer if…
- Your review is qualitative or mixed-methods with deep inductive coding
- You're at an institution with existing EPPI-Reviewer training and licensing
- You need EPPI's specific machine-learning classifier customization workflow
- Your evidence-synthesis methodology is policy-research-flavored rather than medical
Frequently asked questions
- Which is the best systematic-review tool for screening?
- If screening is your only need, Covidence is excellent and Rayyan is solid (and free at the entry tier). If you want screening to feed into extraction, RoB, meta-analysis, GRADE, and manuscript drafting in the same project — and benefit from blinded dual-reviewer enforcement plus Cohen's kappa IRR out of the box — mapped is the broader fit.
- Which is the best tool for meta-analysis?
- RevMan (Cochrane) is canonical for intervention meta-analyses inside the Cochrane Library workflow. mapped is broader: an R engine that covers intervention, prognostic, diagnostic test accuracy (mada / SROC), and network meta-analysis (netmeta with league tables and rankograms), plus 13 plot types and 600 DPI exports across six journal presets — all without writing R code.
- Which is the best tool for solo researchers and students?
- Rayyan's free tier is hard to beat for screening-only workflows. mapped's free tier covers one active project end-to-end with AI-assisted screening and basic extraction — useful for a thesis review. For a serious review with meta-analysis or GRADE, the Mapped Project tier (list $119/project, currently $79 launch pricing) is typically cheaper than Covidence's annual subscription.
- Which is the best tool for institutions and research groups?
- EPPI-Reviewer and Covidence both have established institutional licensing. mapped's Custom Enterprise plan adds SSO, unlimited projects and team members, dedicated onboarding, and per-institution pricing negotiated rather than per-user. The Cohen's kappa IRR transparency and immutable audit trail are increasingly required for IRB and journal submission.
- What's free across these tools?
- Rayyan has a generous free tier (limited features). RevMan is free for non-commercial / Cochrane use. Covidence offers a free trial only. EPPI-Reviewer is paid (with academic discounts). mapped's free tier covers one active project with up to 1,000 screening citations, 200 AI-assisted screenings, and PRISMA auto-generation.
- How do I migrate an existing review to mapped?
- Import your search results as RIS or BibTeX (compatible with exports from any of the four tools above). Screening decisions can be uploaded as CSV; extraction templates can be reproduced from your existing forms. For projects with substantial in-flight work, contact us at /contact and we'll help structure the migration.
Ready to try mapped?
Free tier — no credit card. The full eight-step workflow, one project at a time.