How do their growth rates compare?

Consensus has a month-over-month growth rate of -1.2%; DeClassIFY has —.

How does pricing compare?

Consensus: Freemium. Freemium. A free tier offers a limited number of AI-powered searches per month; paid individual plans unlock unlimited searches and advanced research features, with discounted student pricing and team/enterprise options. DeClassIFY: Freemium. Free to install from the Chrome Web Store. The listing does not advertise a paid tier; any premium features, if they exist, are not described on the store page.

What are alternatives to Consensus and DeClassIFY?

Other tools in related categories include Perplexity, Semantic Scholar, Kagi Search, SciSpace, PDFgear.

Head-to-Head Benchmark

Consensus vs DeClassIFY

Consensus records 6,014,388 monthly visits with -1.2% month-over-month growth and Freemium pricing. DeClassIFY records 0 monthly visits with — growth and Freemium pricing.

ConsensusFreemiumTraffic Leader

AI academic search engine for peer-reviewed science

Monthly Visits

6.01M

MoM Velocity

-1.2%

Top Market

🇺🇸 United States

View Consensus Analysis

consensus.app

DeClassIFYFreemium

Classify PDF files in seconds so you stop reading paperwork you don't need

Monthly Visits

0

MoM Velocity

—

Top Market

🌐 Global

View DeClassIFY Analysis chromewebstore.google.com

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Consensus	DeClassIFY
Official Domain	consensus.app	chromewebstore.google.com
Pricing Model	Freemium	Freemium
Monthly Visits	6.01M (6,014,388)	0 (0)

MoM Traffic Delta	-71.39K (-1.2%)	0 (—)

Primary Market & Share	🇺🇸 United States (12.8%)	🌐 Global (—)

Direct Visits / mo	2.92M	0

User Rating	4.7	4.2

Supported Platforms	Website	Browser Extension

Consensus

AI academic search engine for peer-reviewed science

Evidence-grounded answers

Ask a research question in plain language and get answers synthesized from peer-reviewed studies, with each claim linked to its source paper.

Consensus Meter

A visual summary shows how the scientific literature leans on a yes/no question, indicating agreement, disagreement or mixed evidence.

Powerful filters

Narrow results by study design, sample size, journal quality, publication year and more to prioritize high-quality evidence.

Topic synthesis and Deep Search

Aggregate findings across many studies into structured summaries that map what is known and where the gaps are.

Strengths & Pros

+Answers cite real peer-reviewed papers, so claims are verifiable
+Consensus Meter makes it easy to gauge scientific agreement at a glance
+Rich filters help separate high-quality evidence from weaker studies
+Fast, clean interface designed around research workflows

Limitations

Frequently Asked Questions: Consensus vs DeClassIFY

Consensus has 6,014,388 monthly visits, while DeClassIFY has 0. Traffic estimates describe audience size, not product quality.

More Head-to-Head Matchups

Consensus vs Perplexity

94.32M visits/mo

DeClassIFY vs Perplexity

88.31M visits/mo

Consensus vs Semantic Scholar

14.21M visits/mo

DeClassIFY vs Semantic Scholar

8.2M visits/mo

Consensus vs Kagi Search

10.66M visits/mo

DeClassIFY vs Kagi Search

4.65M visits/mo

Best Alternatives to Consensus & DeClassIFY (12)

–Free tier caps the number of AI-assisted searches per month
–Coverage is strongest for STEM and health fields, lighter for some humanities topics
–It guides you toward sources but is not a substitute for reading full papers

DeClassIFY

Classify PDF files in seconds so you stop reading paperwork you don't need

One-second PDF classification

Reads a PDF and assigns it a document category immediately, so you can decide whether it deserves your attention.

Triage for mixed download folders

Turns a pile of unsorted PDFs into labelled groups you can scan quickly instead of opening file by file.

Tiny footprint

The extension is only a few hundred kilobytes, so it loads fast and does not slow browsing down.

Privacy-conscious design

The developer declares that user data is not collected, sold or used for unrelated purposes.

Strengths & Pros

+Very fast classification that removes the manual step of opening every PDF
+Small, unobtrusive extension that does not slow the browser down
+Free to install and distributed through the official Chrome Web Store
+Explicit statement that user data is not collected or sold

Limitations

–

Small user base at the time of writing, so community reviews are limited

–Only classifies PDFs — it is not a reader, editor or file manager

–No public pricing page describing premium tiers or higher limits

01

Perplexity

88.3M/mo

SpecialistCovers general web sources alongside academic papers, but lacks specialized scientific synthesis metrics and consensus ratings.

AI Search EngineFreemium72% direct

#1

02

Semantic Scholar

8.2M/mo

Free / Open-sourceCompletely free access to a massive scholarly index, but offers less automated natural-language evidence synthesis than Consensus.

AI Research ToolFree+5.8%

Semantic Scholar search interface showing AI TLDR summaries and citation context for a scientific paper

03

Kagi Search

4.6M/mo

SpecialistA paid, ad-free search engine that answers to its users

AI Search EngineFree Trial, Paid+3.2%

Screenshot of Kagi search results with source ranking controls and an AI-generated summary

#3

04

SciSpace

4.5M/mo

Provides deeper PDF reading and interactive literature analysis tools, but is less focused on quick evidence aggregation.

AI ChatbotFreemium+8.6%

SciSpace workspace with a research paper open next to an AI chat panel explaining highlighted text

05

PDFgear

2.8M/mo

A free, AI-powered PDF editor for every device

AI PDFFree24% direct

PDFgear editor interface showing PDF text editing and AI chat panel

06

Elicit

1.8M/mo

Performs advanced systematic review data extraction and evidence synthesis, but has a more complex interface than Consensus.

AI Research ToolFreemium+3.1%

07

Jenni

1.5M/mo

SpecialistThe AI workspace where researchers read, write, and cite with every claim traceable to its source

AI Writing AssistantsFreemium+5.2%

08

Rayyan

1.1M/mo

SpecialistAI-assisted systematic review software for screening, extraction, and evidence synthesis at scale

AI Research ToolFreemium+7.9%

09

UPDF AI

1.1M/mo

Cross-platform PDF editing with GPT-powered AI for reading, translating, and signing documents

AI PDFFreemium, Free Trial, Paid19% direct

Screenshot of UPDF AI showing a summarised PDF beside the document and AI chat panel

10

ChatPDF

1M/mo

Chat with any PDF, video, or website and get cited answers in seconds

AI PDFFreemium44% direct

Screenshot of ChatPDF with an uploaded research paper and a chat thread containing answers linked to source pages

11

Glasp

889.6K/mo

Highlight the web, learn in public, and build your AI clone

AI Research ToolFreemium45% direct

Glasp library showing highlights with notes, tags and AI-generated summaries

12

Scite

842K/mo

Tracks how papers are cited with Smart Citations to gauge reliability, but features a less direct Q&A synthesis.

AI Research ToolFree Trial, Contact for Pricing+1.1%

Visit

Perplexity

88.3M/mo

Official

SpecialistCovers general web sources alongside academic papers, but lacks specialized scientific synthesis metrics and consensus ratings.

AI Search Engine72% direct

Freemium

#2

Visit

Semantic Scholar

8.2M/mo+5.8%

Official

Free / Open-sourceCompletely free access to a massive scholarly index, but offers less automated natural-language evidence synthesis than Consensus.

AI Research Tool23% direct

Free

Visit

Kagi Search

4.6M/mo+3.2%

SpecialistA paid, ad-free search engine that answers to its users

AI Search Engine94% direct

Free Trial, Paid

Visit

SciSpace

4.5M/mo+8.6%

Official

Provides deeper PDF reading and interactive literature analysis tools, but is less focused on quick evidence aggregation.

AI Chatbot29% direct

Freemium

Visit

PDFgear

2.8M/mo

A free, AI-powered PDF editor for every device

AI PDF24% direct

Free

Visit

Elicit

1.8M/mo+3.1%

Official

Performs advanced systematic review data extraction and evidence synthesis, but has a more complex interface than Consensus.

AI Research Tool49% direct

Freemium

Visit

Jenni

1.5M/mo+5.2%

SpecialistThe AI workspace where researchers read, write, and cite with every claim traceable to its source

AI Writing Assistants36% direct

Freemium

Visit

Rayyan

1.1M/mo+7.9%

SpecialistAI-assisted systematic review software for screening, extraction, and evidence synthesis at scale

AI Research Tool61% direct

Freemium

Visit

UPDF AI

1.1M/mo

Official

Cross-platform PDF editing with GPT-powered AI for reading, translating, and signing documents

AI PDF19% direct

Freemium, Free Trial, Paid

Visit

ChatPDF

1M/mo

Official

Chat with any PDF, video, or website and get cited answers in seconds

AI PDF44% direct

Freemium

Visit

Glasp

889.6K/mo

Highlight the web, learn in public, and build your AI clone

AI Research Tool45% direct

Freemium

Visit

Scite

842K/mo+1.1%

Tracks how papers are cited with Smart Citations to gauge reliability, but features a less direct Q&A synthesis.

AI Research Tool45% direct

Free Trial, Contact for Pricing

Consensus vs DeClassIFY

Side-by-Side Traffic & Specification Matrix

Consensus

Strengths & Pros

Limitations

Frequently Asked Questions: Consensus vs DeClassIFY

How do Consensus and DeClassIFY compare in monthly traffic?

How do their growth rates compare?

How does pricing compare?

What are alternatives to Consensus and DeClassIFY?

More Head-to-Head Matchups

Best Alternatives to Consensus & DeClassIFY (12)

DeClassIFY

Strengths & Pros

Limitations