Builds full-stack web applications from natural language, moving further into functional app development than standard UI design tools.
#1Rayyan records 1,116,437 monthly visits with +7.9% month-over-month growth and Freemium pricing. Stitch records 4,725,324 monthly visits with -13.9% growth and Freemium pricing.
AI-assisted systematic review software for screening, extraction, and evidence synthesis at scale
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | rayyan.ai | stitch.withgoogle.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 1.12M (1,116,437) | 4.73M (4,725,324) |
| MoM Traffic Delta | +81.92K (+7.9%) |
| -760.28K (-13.9%) |
| Primary Market & Share | 🇺🇸 United States (18%) | 🇮🇳 India (18.8%) |
|---|
| Direct Visits / mo | 677.88K | 2.4M |
|---|
| User Rating | 4.5 | 4.4 |
|---|
| Supported Platforms | Website | Website |
|---|
AI-assisted systematic review software for screening, extraction, and evidence synthesis at scale
The Systematic Auto-Resolver deduplicates up to 200,000 references using your own inclusion and exclusion protocol with one click.
ResearchPilot delivers zero-shot relevance ratings, an AI Analyzer, an AI Reviewer, and auto-extraction to speed up search, screening, and data capture.
Work through title, abstract, and full-text screening with inclusion and exclusion tagging, conflict resolution, and blinded reviewer modes.
Capture structured study data with configurable extraction fields, apply PICO frameworks, and export results with auto-generated PRISMA diagrams.

Google's AI tool for generating mobile and web UI designs from prompts
Describe an app screen in natural language and Stitch produces multiple complete UI designs, including mobile and web layouts.
Upload a sketch, screenshot or existing screen and Stitch produces a matching design interpretation.
Iterate with follow-up prompts to change layout, color themes and components without starting over.
Move generated designs toward implementation with export options suited to design and development handoff.
Builds full-stack web applications from natural language, moving further into functional app development than standard UI design tools.
#1
Free / Open-sourceProvides a completely free and open academic search database, but lacks collaborative literature review screening tools.


SpecialistGreat for finding scientific agreement and evidence-backed answers, but lacks dedicated screening queues and systematic review extraction forms.


SpecialistExcellent for reading, chatting with, and summarizing individual papers, but less structured for multi-reviewer systematic review screening.

Produces high-quality frontend code directly from text prompts, but acts more as a developer tool than a pure designer.
Stronger automated data extraction and evidence synthesis from papers, but less focused on collaborative title and abstract screening workflows.
SpecialistOffers powerful citation analysis and smart citation metrics, but is less tailored for full PRISMA systematic review workflows.

SpecialistVisualizes citation networks and paper relationships wonderfully, but lacks Rayyan's screening, tagging, and exclusion tracking features.
SpecialistProvides intuitive visual maps of academic literature connections, but doesn't support systematic review screening or data extraction.

Generates editable wireframes and mockups similarly, but offers tighter integration with design systems and Figma.
Provides solid literature search and reference management tools, but lacks Rayyan's specialized collaborative screening interface.

Converts sketches and text prompts into wireframes, but focuses more on rapid prototyping than production code generation.
Builds full-stack web applications from natural language, moving further into functional app development than standard UI design tools.
Free / Open-sourceProvides a completely free and open academic search database, but lacks collaborative literature review screening tools.
SpecialistGreat for finding scientific agreement and evidence-backed answers, but lacks dedicated screening queues and systematic review extraction forms.
SpecialistExcellent for reading, chatting with, and summarizing individual papers, but less structured for multi-reviewer systematic review screening.
Produces high-quality frontend code directly from text prompts, but acts more as a developer tool than a pure designer.
Stronger automated data extraction and evidence synthesis from papers, but less focused on collaborative title and abstract screening workflows.
SpecialistOffers powerful citation analysis and smart citation metrics, but is less tailored for full PRISMA systematic review workflows.
SpecialistVisualizes citation networks and paper relationships wonderfully, but lacks Rayyan's screening, tagging, and exclusion tracking features.
SpecialistProvides intuitive visual maps of academic literature connections, but doesn't support systematic review screening or data extraction.
Generates editable wireframes and mockups similarly, but offers tighter integration with design systems and Figma.
Provides solid literature search and reference management tools, but lacks Rayyan's specialized collaborative screening interface.
Converts sketches and text prompts into wireframes, but focuses more on rapid prototyping than production code generation.