# ExplainThis vs popup – AI Assistant for Any Webpage

ExplainThis records 1,463 monthly visits with -54% month-over-month growth and Free pricing. popup – AI Assistant for Any Webpage records 0 monthly visits with — growth and Free + in-app purchases pricing.

| Metric | [ExplainThis](https://openaitools.app/tool/explainthis) | [popup – AI Assistant for Any Webpage](https://openaitools.app/tool/popup) |
| :--- | :--- | :--- |
| Website URL | https://explainthis.ai | https://chromewebstore.google.com/detail/popup/nglhellhgkogpbahighbgkolkejhkagk |
| Categories | AI Assistant, AI Productivity Tools, AI Marketing, AI Sales | AI Assistant, AI Agent, AI Copilot |
| Pricing Model | Free | Free + in-app purchases |
| Monthly Visits | 1,463 | 0 |
| MoM Growth Rate | -54% | — |
| Primary Market | United States | Global |
| Direct Visits | 428 | 0 |
| Review Score | 3.9 | 1.8 |
| Saved Count | 0 | 2 |
| Supported Platforms | Website | Browser Extension |

## ExplainThis

ExplainThis is an AI assistant aimed squarely at people who read for a living. It is distributed mainly as a Chrome extension, so instead of copying text into a separate tool you can summarise and explain a page right where you found it. That low-friction placement is the point: the tool is meant to slot into an existing browsing habit rather than demand a new workflow.

Its core jobs are summarisation and explanation. Long articles can be distilled into the essentials, and YouTube videos can be turned into the key points without watching start to finish. For startup knowledge workers — founders, marketers, salespeople and product managers — that means faster grounding when researching a market, a competitor or a topic that just came up in a meeting.

The product fits a category of lightweight AI copilots that augment browsing rather than replace it. It will not do your thinking for you, and summaries should still be checked against the source for anything high-stakes, but it removes a meaningful amount of reading overhead from the day. Check the official site for the current feature set and plan limits, since AI assistant products in this space evolve quickly.

**Pricing & Plans:** 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.

- **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.
- **Explanations on demand:** Ask follow-up questions about the content you are viewing to dig into the parts that matter to you.

**Strengths:** 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:** 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

[Profile (Markdown)](https://openaitools.app/tool/explainthis.md)

## popup – AI Assistant for Any Webpage

popup solves a narrow but frequent annoyance: you are reading something on the web and want an AI to work on one paragraph, not the whole page. Instead of copying text into a separate chat window, you highlight it, right-click, and pick whichever agent you need from the context menu. The extension reads the selection and answers based on it.

The extension is organised around a small agent marketplace. Rather than shipping one generic assistant, popup lets you browse a set of agents and switch on only the ones you want; enabled agents are what populate your context menu, keeping the list short and relevant. The developer describes the result as an assistant invoked "at any location on a webpage", driven by whatever content the user has selected.

popup is published on the Chrome Web Store by an independent developer (jianliangw1), is roughly 411 KiB, and runs in English (US). Version 0.0.5 was published on 27 May 2024 and the listing currently shows 48 users with a 5.0 rating from a single review. The extension declares in-app purchases and a broad privacy disclosure covering personally identifiable information, financial and payment information, authentication information and website content.

**Pricing & Plans:** Free to install from the Chrome Web Store. The listing discloses that the extension offers in-app purchases, so some agents or usage may be paid.

- **Context-menu invocation:** Enabled agents appear in the browser right-click menu, giving you an AI action at any point on any page.
- **Selection-aware responses:** Replies are generated from the specific text you highlight rather than the entire document.
- **Agent marketplace:** Browse and enable individual agents instead of relying on one generic assistant.
- **Lightweight install:** Around 411 KiB, so it adds little to browser memory or startup time.

**Strengths:** Works on any page without copying text elsewhere; The agent-marketplace model keeps the menu uncluttered; Very small download at around 411 KiB; Free to install

**Limitations:** Small user base and only one review, so reliability is hard to judge; In-app purchases mean some functionality is not free; Requires broad data permissions including payment and authentication information

[Profile (Markdown)](https://openaitools.app/tool/popup.md)

## Frequently Asked Questions

### How do ExplainThis and popup – AI Assistant for Any Webpage compare in monthly traffic?

ExplainThis has 1,463 monthly visits, while popup – AI Assistant for Any Webpage has 0. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

ExplainThis has a month-over-month growth rate of -54%; popup – AI Assistant for Any Webpage 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. popup – AI Assistant for Any Webpage: Free + in-app purchases. Free to install from the Chrome Web Store. The listing discloses that the extension offers in-app purchases, so some agents or usage may be paid.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Manus](https://openaitools.app/tool/manus) | 19,195,779 | -1.7% | Free Trial | A general-purpose AI agent that executes tasks, not just answers them | [.md](https://openaitools.app/tool/manus.md) |
| 2 | [Monica](https://openaitools.app/tool/monica-ai) | 4,512,775 | -11.3% | Freemium | All-in-one AI assistant across web, browser, desktop and mobile | [.md](https://openaitools.app/tool/monica-ai.md) |
| 3 | [Sider](https://openaitools.app/tool/sider) | 2,644,740 | -10.6% | Freemium | AI sidebar and browser agent for reading, writing and research | [.md](https://openaitools.app/tool/sider.md) |
| 4 | [Clawdbot (OpenClaw)](https://openaitools.app/tool/clawdbot) | 1,903,068 | -25.4% | Paid, Free | Open-source personal AI assistant that runs on your own machine and works from chat apps | [.md](https://openaitools.app/tool/clawdbot.md) |
| 5 | [Merlin AI](https://openaitools.app/tool/merlin-ai-plugins) | 1,382,634 | +13.1% | Freemium | One AI assistant that plugs ChatGPT, Claude and Gemini into every tab | [.md](https://openaitools.app/tool/merlin-ai-plugins.md) |
| 6 | [Merlin AI](https://openaitools.app/tool/merlin-ai) | 1,382,634 | +13.1% | Freemium | One-click AI assistant for browsing, writing and research | [.md](https://openaitools.app/tool/merlin-ai.md) |
| 7 | [Glasp](https://openaitools.app/tool/glasp) | 889,564 | -14.1% | Freemium | Highlight the web, learn in public, and build your AI clone | [.md](https://openaitools.app/tool/glasp.md) |
| 8 | [HARPA AI](https://openaitools.app/tool/harpa-ai) | 537,461 | +99.3% | Freemium | One browser agent that combines every major AI model with web automation | [.md](https://openaitools.app/tool/harpa-ai.md) |
| 9 | [Heyclicky](https://openaitools.app/tool/heyclicky) | 320,678 | +7.4% | Freemium | An AI buddy on your computer that sees your screen and walks you through anything | [.md](https://openaitools.app/tool/heyclicky.md) |
| 10 | [Glarity](https://openaitools.app/tool/glarity-summarize-google-and-youtube) | 188,823 | -49.6% | Freemium | Summarize YouTube, Google, and any page with AI — free in your browser | [.md](https://openaitools.app/tool/glarity-summarize-google-and-youtube.md) |

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Source: https://openaitools.app/compare/explainthis-vs-popup

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