How do their growth rates compare?

ExplainThis has a month-over-month growth rate of -54%; QuickDic AI has —.

How does pricing compare?

ExplainThis: Free. ExplainThis is generally offered as a free-to-start AI assistant with paid options for heavier usage. Review the official site for current pricing, as details may change. QuickDic AI: Free. Listed as a free extension in the Chrome Web Store, with no paid tier described in the listing.

What are alternatives to ExplainThis and QuickDic AI?

Other tools in related categories include Perplexity, Monica, Sider, Merlin AI, Merlin AI.

Head-to-Head Benchmark

ExplainThis vs QuickDic AI

ExplainThis records 1,463 monthly visits with -54% month-over-month growth and Free pricing. QuickDic AI records 0 monthly visits with — growth and Free pricing.

ExplainThisFreeTraffic Leader

Summarise and explain any page or video as you browse

Monthly Visits

1.46K

MoM Velocity

-54%

Top Market

🇺🇸 United States

View ExplainThis Analysis

explainthis.ai

QuickDic AIFree

Double-click any webpage for instant AI answers and fresh angles

Monthly Visits

0

MoM Velocity

—

Top Market

🌐 Global

View QuickDic AI Analysis chromewebstore.google.com

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	ExplainThis	QuickDic AI
Official Domain	explainthis.ai	chromewebstore.google.com
Pricing Model	Free	Free
Monthly Visits	1.46K (1,463)	0 (0)

Primary Market & Share	🇺🇸 United States (100%)	🌐 Global (—)

Direct Visits / mo	428	0

User Rating	3.9	3.5

Supported Platforms	Website	Browser Extension

ExplainThis

Summarise and explain any page or video as you browse

Page and article summarisation

Turn long articles and pages into a readable summary so you can decide what deserves a full read.

Video explanation

Get the key takeaways from YouTube videos without sitting through the entire runtime.

Browser extension workflow

Primarily a Chrome extension, so it sits alongside whatever you are already browsing rather than forcing a separate app.

Built for fast-moving teams

Built for startup knowledge workers who need context fast across marketing, sales and product research.

Strengths & Pros

+Sits inside the browser as a Chrome extension, so there is nothing new to launch
+Handles both web pages and YouTube videos
+Speeds up research for founders, marketers and product teams
+Useful for triaging which long articles actually deserve a full read

Limitations

Frequently Asked Questions: ExplainThis vs QuickDic AI

ExplainThis has 1,463 monthly visits, while QuickDic AI has 0. Traffic estimates describe audience size, not product quality.

More Head-to-Head Matchups

ExplainThis vs Perplexity

88.31M visits/mo

Perplexity vs QuickDic AI

88.31M visits/mo

ExplainThis vs Monica

4.51M visits/mo

Monica vs QuickDic AI

Best Alternatives to ExplainThis & QuickDic AI (12)

–

Relies on a browser extension, so it is most useful inside desktop Chrome

–Summary quality depends on how well the page is structured

–You need to review AI output before acting on it for anything important

–Best experience requires signing in, which some users prefer to avoid

QuickDic AI

Double-click any webpage for instant AI answers and fresh angles

Double-click to query

Select or double-click text on any page and the extension fires an AI query on your behalf, returning an answer in an overlay without a trip to a chat app.

Multi-angle answers

Responses go beyond a single definition and suggest related or alternative questions, giving you several ways into the same subject.

Invisible on-page button

A subtle floating button sits in the centre of each page so the assistant is one click away on social feeds, shops and long articles alike.

Stays out of the way

The overlay renders on top of the current page, so you never lose your scroll position, tab or reading flow.

Strengths & Pros

+Eliminates tab-switching by answering inside the current page
+Encourages broader understanding by suggesting related questions, not just one definition
+Free to install and try with no account described
+Works on social, shopping and general sites rather than one platform

Limitations

–Simple overlay and word-lookup utilities competes with stronger, more actively maintained extensions
–Store page shows no user ratings and no updates since 2023, so quality signals are thin
–The listing declares handling of personally identifiable information and location data, which some users will weigh before installing

01

Perplexity

88.3M/mo

Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.

AI Search EngineFreemium72% direct

#1

02

Monica

4.5M/mo

All-in-one AI assistant across web, browser, desktop and mobile

AI AssistantFreemium55% direct

Monica web app showing an AI chat conversation with model selector and sidebar tools

#2

03

Sider

2.6M/mo

AI sidebar and browser agent for reading, writing and research

AI AssistantFreemium64% direct

Sider sidebar summarising a web article with model picker visible

#3

04

Merlin AI

1.4M/mo

One AI assistant that plugs ChatGPT, Claude and Gemini into every tab

AI AssistantFreemium+13.1%

Screenshot of the Merlin AI Chrome extension summarizing an article with multiple AI models available

05

Merlin AI

1.4M/mo

One-click AI assistant for browsing, writing and research

AI AssistantFreemium+13.1%

Merlin AI Chrome extension sidebar summarizing a webpage

06

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

07

HARPA AI

537.5K/mo

One browser agent that combines every major AI model with web automation

AI AgentFreemium+99.3%

HARPA AI extension panel showing model selection and page-aware prompt shortcuts on a website

08

Glarity

188.8K/mo

Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser

AI SummarizerFreemium7% direct

Screenshot of Glarity summarizing a YouTube video with timestamped highlights in the sidebar

09

Kome AI

174.9K/mo

Summarize, bookmark and write with AI right in your browser

AI SummarizerFreemium30% direct

Kome AI extension summarizing a long article and saving it to the bookmark library

10

Noiz

148.8K/mo

Summarize any YouTube video into key ideas and timestamped notes in seconds.

AI Youtube SummaryFree Trial29% direct

Noiz summary panel with key idea bullets, timestamps, and a transcript view for a YouTube video

11

AnswersAi

61.7K/mo

Snap a question, get the answer instantly

AI AnswerPaid+22.6%

AnswersAi mobile app displaying a photographed math question and its step-by-step solution

12

Quiz Solver AI

35.2K/mo

AI browser extension that reads quiz questions and answers them with explanations

AI QuizzesFreemium, Paid+28.6%

Quiz Solver AI extension panel showing an AI answer with step-by-step explanation on a quiz page

Visit

Perplexity

88.3M/mo

Official

Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.

AI Search Engine72% direct

Freemium

Visit

Monica

4.5M/mo

All-in-one AI assistant across web, browser, desktop and mobile

AI Assistant55% direct

Freemium

Visit

Sider

2.6M/mo

AI sidebar and browser agent for reading, writing and research

AI Assistant64% direct

Freemium

Visit

Merlin AI

1.4M/mo+13.1%

One AI assistant that plugs ChatGPT, Claude and Gemini into every tab

AI Assistant50% direct

Freemium

Visit

Merlin AI

1.4M/mo+13.1%

One-click AI assistant for browsing, writing and research

AI Assistant50% direct

Freemium

Visit

Glasp

889.6K/mo

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

AI Research Tool45% direct

Freemium

Visit

HARPA AI

537.5K/mo+99.3%

One browser agent that combines every major AI model with web automation

AI Agent76% direct

Freemium

Visit

Glarity

188.8K/mo

Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser

AI Summarizer7% direct

Freemium

Visit

Kome AI

174.9K/mo

Summarize, bookmark and write with AI right in your browser

AI Summarizer30% direct

Freemium

Visit

Noiz

148.8K/mo

Summarize any YouTube video into key ideas and timestamped notes in seconds.

AI Youtube Summary29% direct

Free Trial

Visit

AnswersAi

61.7K/mo+22.6%

Snap a question, get the answer instantly

AI Answer35% direct

Paid

Visit

Quiz Solver AI

35.2K/mo+28.6%

AI browser extension that reads quiz questions and answers them with explanations

AI Quizzes66% direct

Freemium, Paid

ExplainThis vs QuickDic AI

Side-by-Side Traffic & Specification Matrix

ExplainThis

Strengths & Pros

Limitations

Frequently Asked Questions: ExplainThis vs QuickDic AI

How do ExplainThis and QuickDic AI compare in monthly traffic?

How do their growth rates compare?

How does pricing compare?

What are alternatives to ExplainThis and QuickDic AI?

More Head-to-Head Matchups

Best Alternatives to ExplainThis & QuickDic AI (12)

QuickDic AI

Strengths & Pros

Limitations