# Rayyan — AI Compare Ninja

> Work on systematic reviews with AI relevance predictions, duplicate detection, and PICO extraction.

## Overview
- **Category:** Productivity (Science & research)
- **Status:** Active · checked - Active, officially documented AI product.
- **Paid from:** 8.33 USD / month, billed quarterly (Essential)
- **Free access:** Free plan
- **Website:** https://www.rayyan.ai/
- **Canonical URL:** https://www.aicompare.ninja/en/tool/rayyan

## What it does
- AI relevance predictions automatically prioritise articles for systematic reviews
- Automatic duplicate detection cleans imported data from literature databases
- Essential: PRISMA flow diagrams, automatic duplicate resolution, and 5 free reviewers
- PICO extraction (Population, Intervention, Comparison, Outcome) in the Advanced tier
- Free tier includes 3 active reviews and 2 free reviewers
- Advanced tier expands to 9 active reviews and 10 reviewer seats
- Collaborative workspace for research teams with shared review projects

## In brief
Rayyan is a web-based platform for systematic literature reviews that uses AI relevance predictions and automatic duplicate detection to significantly speed up the screening process for research teams.

Essential costs 8.33 USD per month billed quarterly and adds PRISMA flow diagrams, automatic duplicate resolution, and five free reviewers to Free. Advanced costs 13.33 USD per month billed quarterly and adds PICO extraction, more concurrent reviews, and more reviewer seats.


## Limits
Free includes three active reviews and AI relevance predictions. Essential and Advanced are billed quarterly; Essential adds PRISMA flow diagrams, automatic duplicate resolution, and five free reviewers. Rayyan is controller for account data and processor for uploaded review content.

## Pricing tiers
| Tier | Price | Period | What you get |
| --- | --- | --- | --- |
| Free | free | Free | 3 active reviews; 2 free reviewers; AI relevance predictions |
| Essential | 8.33 USD | month, billed quarterly | Everything in Free; PRISMA flow diagrams and automatic duplicate resolution; 5 free reviewers and unlimited mobile app access |
| Advanced | 13.33 USD | month, billed quarterly | 9 active reviews; 10 free reviewers; AI PICO extraction |

## Sources
All details regarding plans, limits, and features are based on official vendor documentation and the primary sources verified below.

- https://www.rayyan.ai/pricing
- https://www.rayyan.ai/privacy-policy
- https://www.rayyan.ai/endpoints/terms

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*Source: AI Compare Ninja (2026) - https://www.aicompare.ninja/en/tool/rayyan*