Rayyan vs scienceOS

Comprehensive side-by-side comparison — features, pricing, performance, and more.

Data last refreshed October 2026

Rayyan

Rayyan Systems, Inc.

AI-Powered Systematic Review & Literature Review Platform

Freemium

75% verification coverage

scienceOS

scienceOS UG (haftungsbeschränkt)

The AI research tool for scientists with high standards and little time.

Freemium

74% verification coverage

Trust & Reliability

Rayyan

Users:1M-10M

Customers (per vendor):IQVIA, Qatar University, University of Gävle +7

GDPR

SOC 2

HIPAA

scienceOS

Uptime:99.71% (30-day)Status page

Customers (per vendor):Institut für Solarenergieforschung, University of Sussex, Kiel University of Applied Sciences +7

GDPR

Overall Winner: Rayyan

6.1/10 vs scienceOS at 4.7/10

Leads in:

Support

Integration

Compliance & Data Protection

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

AI Comparison Summary

Rayyan

6.1

avg score

scienceOS

4.7

avg score

Rayyan leads overall — particularly in Customization and Support and 2 more.

scienceOS has an edge in Performance and Planning Quality.

Based on 7 dimensions

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

Overall Winner

Rayyan

6.1 / 10

Rayyan

Best For

Individual researchers getting started with systematic reviews

PhD students and postdocs needing AI-powered tools to save time

Professionals conducting complex reviews with upgraded AI capabilities

Research groups and departments requiring shared workflows and collaboration

scienceOS

Best For

Scientists with high standards and little time

Researchers at academic institutions

Teams collaborating on scientific projects

Individuals needing to chat with large volumes of PDFs

* Verdict is based on our algorithmic scoring of publicly available data. Learn about our methodology

Rayyan is best for

💻Coding & Dev5.0💬Chat & Conversation5.0🎧Customer Support5.0

scienceOS is best for

🎧Customer Support7.5🔍Research7.0💬Chat & Conversation6.0

Filter by your use case:

Limitations

Rayyan

Cons

Free plan is limited to 3 active reviews and 2 free reviewers
Free plan has limited mobile app access
Advanced plan does not include AI Reviewer, AI Analyzer, Chat with Abstracts, Chat with Full Texts, Auto Match PDF, or Auto Retrieve PDF
Advanced plan does not include Enterprise Admin features
Advanced plan does not include PRISMA 2020 Report, Kappa Report, Duplicates Removed Report, Screening Report, Full Text Screening Report, Data Extraction Report, Risk of Bias Report, Copy References, Data Sampling, Meta-Analysis, or Audit Log
Advanced plan does not include Single Sign On (SSO) or MCP Server

scienceOS

Cons

Free and Angel plans limit PDF uploads to 128 pages and 80 MB
Free plan only extracts text from encoded PDFs, not scanned PDFs or figures/tables
Free plan has a fast model usage limit
Angel plan has a best model usage limit
Industry pricing requires direct contact
Team plan requires six or more users

Weighted Score — Adjust What Matters to You

Pick a profile or drag sliders — scores and radar update instantly on the right.

Quick profiles:

Ease of Use5

Customization5

Support5

Integration5

Compliance & Data Protection5

Performance5

Planning Quality5

Dimension Comparison

Rayyan

6.1

/ 10

Clear winner

scienceOS

4.7

/ 10

Dimension Breakdown

Ease of Use

How intuitive is onboarding, UI navigation, and day-to-day usage for the target audience?

Rayyan

6.0

scienceOS

6.0

Customization

Calculated

How much can users tailor workflows, settings, prompts, or outputs to their needs?

Rayyan

6.0▲ +4.0

scienceOS

2.0

Support

How strong is the documentation, customer support, community, and learning resources?

Rayyan

7.0▲ +3.0

scienceOS

4.0

Integration

Calculated

How well does it connect with other tools, APIs, and workflows?

Rayyan

7.0▲ +5.0

scienceOS

2.0

Compliance & Data Protection

Calculated

Compliance certifications and data-protection posture, counted from ten verified signals: SOC 2 Type II, GDPR compliance, HIPAA, WCAG AA/AAA, PII redaction, licensed-only training, a published sub-processor list, a downloadable DPA, not training on user data, and a documented deletion path

Rayyan

7.0▲ +3.0

scienceOS

4.0

Performance

Calculated

Latency + throughput speed

Rayyan

5.0

scienceOS

8.0▲ +3.0

Planning Quality

Calculated

Multi-step planning depth + replanning capability

Rayyan

5.0

scienceOS

7.0▲ +2.0

Calculated = derived from structured signals (integration count, API/open-source config, compliance certs, response-time). AI = LLM-assessed from public website content. Methodology

Task Performance

Rayyan

Task

scienceOS

5.0

Literature Search

9.0

7.0

Citation Management

7.0

8.0

Data Extraction

8.0

2.0

Hypothesis Generation

5.0

4.0

Paper Summarization

8.0

7.0

Methodology Guidance

5.0

Cross Reference

8.0

5.0

Knowledge Synthesis

8.0

4.0

Experiment Tracking

2.0

6.0

Peer Review Support

6.0

4.0

Data Visualization

5.0

6.0

Natural Language Queries

6.0

* Task scores (1–10) are algorithmically generated from publicly available data.

Data is sourced from public information and vendor websites. It may not always be up-to-date — verify pricing and features directly with the vendor before purchasing.Report inaccuracy

Frequently Asked Questions

What are the main differences between Rayyan and scienceOS?

Rayyan — "AI-Powered Systematic Review & Literature Review Platform". scienceOS — "The AI research tool for scientists with high standards and little time". The Features section on this page compares them side by side.

Who is Rayyan best for compared with scienceOS?

Rayyan is best for Individual researchers getting started with systematic reviews; and for PhD students and postdocs needing AI-powered tools to save time. scienceOS is best for Scientists with high standards and little time; and for Researchers at academic institutions.

How does the pricing of Rayyan compare with scienceOS?

Rayyan is freemium, includes a free plan, paid plans start at $8.33/month. scienceOS is freemium, includes a free plan, paid plans start at $8.16/month. Always verify current pricing with the vendor.

Does Rayyan or scienceOS have a free plan?

Rayyan has a free plan. scienceOS has a free plan. Always verify current pricing with the vendor.

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