# Grammarly vs Simplify AI (Chrome Extension)

Grammarly records 58,867,412 monthly visits with -1.5% month-over-month growth and Freemium pricing. Simplify AI (Chrome Extension) records 0 monthly visits with — growth and Free pricing.

| Metric | [Grammarly](https://openaitools.app/tool/grammarly) | [Simplify AI (Chrome Extension)](https://openaitools.app/tool/simplify-ai) |
| :--- | :--- | :--- |
| Website URL | https://www.grammarly.com | https://chromewebstore.google.com/detail/simplify-ai/ajjelinkcmnghbblfilfgpohdpimemoj |
| Categories | AI Writing Assistants, AI Writing, AI Grammar Checker, AI Text Generator | AI Paraphraser, AI Rewriter, AI Writing Assistants, AI Productivity Tools |
| Pricing Model | Freemium | Free |
| Monthly Visits | 58,867,412 | 0 |
| MoM Growth Rate | -1.5% | — |
| Primary Market | United States | Global |
| Direct Visits | 25,398,749 | 0 |
| Review Score | 4.4 | 3.4 |
| Saved Count | 74 | 0 |
| Supported Platforms | Website | Browser Extension |

## Grammarly

Grammarly is the world's most widely deployed AI writing and communication platform, trusted by more than 40 million daily users and 50,000 organizations including Atlassian, Databricks, and Zoom. Operating as a persistent overlay across over 500,000 web applications, desktop programs (Windows and macOS), Microsoft Office, Google Docs, and iOS/Android keyboards, Grammarly analyzes text in real time to eliminate grammatical errors, streamline wordy phrasing, and calibrate tone to match the writer's intent. Following its corporate evolution under the Superhuman Platform umbrella alongside Superhuman Mail and Coda, Grammarly has expanded from a personal proofreader into an enterprise-grade proactive AI communication suite.

In 2026, Grammarly goes well beyond red-underline spellchecking with a suite of specialized AI Agents and document integrity tools. Writers can invoke purpose-built agents—including AI Grader, Citation Finder, Reader Reactions, and Paraphraser—alongside generative AI drafting directly inline where they work. To address academic and professional transparency in the generative AI era, Grammarly offers built-in Plagiarism Detection, an AI Detector, and Grammarly Authorship, which tracks how a document was constructed by automatically categorizing text as human-typed, pasted from external sources, or generated/modified with AI. For teams, Grammarly enforces organizational consistency through custom Style Guides, Brand Tones, reusable Snippets, and Knowledge Share.

Grammarly simplified its subscription structure by consolidating its legacy individual 'Premium' and team 'Business' offerings into a single unified tier: Grammarly Pro. The Free plan ($0/month) covers essential spelling, punctuation, basic tone visibility, and 100 generative AI prompts per month. Grammarly Pro is priced at $12/member/month when billed annually ($144/year) or $30/member/month when billed monthly ($60 quarterly), unlocking unlimited personalized fluency suggestions, full-sentence rewrites, tone adjustment, citation formatting, plagiarism and AI detection, 1 team style guide, and 2,000 generative AI prompts per member each month. Large organizations opt for Grammarly Enterprise (available with Superhuman Go) for unlimited AI prompts, SAML SSO, SCIM provisioning, Data Loss Prevention (DLP), and Bring Your Own Key (BYOK) encryption.

**Pricing & Plans:** Free plan ($0/month) includes core grammar and spelling checks, tone detection, and 100 generative AI prompts/month; Grammarly Pro costs $12/member/month billed annually ($144/year, or $30/month billed monthly) with full-sentence rewrites, plagiarism/AI detection, team style guides, and 2,000 AI prompts/month, while Enterprise offers custom pricing with unlimited AI prompts and BYOK security.

- **Ubiquitous Inline Rewriting & Tone Calibration:** Works natively inside Chrome, Safari, Firefox, Edge, Windows, Mac, Google Docs, MS Office, and mobile keyboards to flag grammar mistakes, rewrite tangled sentences, and shift tone toward confident, empathetic, or executive registers.
- **Specialized AI Agents (AI Grader, Citation Finder & Reader Reactions):** Deploys contextual AI agents that predict how a target audience will react to a draft, locate credible supporting citations, grade essays against rubric criteria, and generate drafts using up to 2,000 monthly prompts on Pro.
- **Grammarly Authorship, AI Detector & Plagiarism Checker:** Scans text against billions of web pages and academic databases for accidental plagiarism, detects AI-generated passages, and logs transparent document provenance via Authorship reports in Google Docs and Word.
- **Team Style Guides, Brand Tones & Knowledge Share:** Enables teams on Pro and Enterprise plans to codify company terminology, ban deprecated jargon, enforce inclusive language, insert shared Snippets, and surface internal company definitions inline.
- **Enterprise Security, DLP & Superhuman Platform Governance:** Protects organizational data with SOC 2 Type 2 attestation, SAML SSO, SCIM lifecycle management, Confidential Mode, Data Loss Prevention controls, Audit Logs API, and customer-managed BYOK encryption.

**Strengths:** Frictionless cross-platform integration works inside virtually every browser, desktop app, email client, and mobile OS without copy-pasting into a separate chatbot.; Consolidating Premium and Business into Grammarly Pro ($12/member/month annual) gives individuals and small teams access to style guides, analytics, and plagiarism/AI detection in one plan.; Grammarly Authorship provides a constructive, transparent audit trail for students and writers to demonstrate human writing integrity alongside responsible AI editing.; Mature enterprise security posture featuring BYOK encryption, Data Loss Prevention, and granular application/domain blocklists.

**Limitations:** Month-to-month billing on Grammarly Pro is steep at $30/member/month compared to the $12/member/month annual commitment ($144 billed upfront).; Core writing intelligence and style rules remain primarily optimized for English dialects (US, UK, Canadian, Australian, Indian) rather than native multilingual grammar checking.; Aggressive inline underlines and pop-up agent cards can feel visually intrusive in dense technical documents or code-heavy web editors unless muted per domain.

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

## Simplify AI (Chrome Extension)

Simplify AI takes a deliberately minimal approach to the reading-comprehension problem. Instead of opening a sidebar, chatbot panel, or separate workspace, the extension lives entirely in the browser's context menu: select the text that is tripping you up, right-click, choose the simplify action, and the rewritten passage is dropped back into the webpage where the original sat. Because the flow never leaves the page, it suits quick, incidental reading moments — a clause in a contract, a paragraph in a technical RFC, a sentence in a research abstract — rather than long editing sessions.

The tool is published on the Chrome Web Store by Calix Huang, an individual developer, and is offered at no cost. Its footprint is tiny (roughly 14 KB), and the listing states that the developer does not collect or use your data, which matters for people who are wary of sending what they read to a third-party service. The extension is in the Workflow & Planning category and lists English (United States) as its language.

It is worth being realistic about its scope. Simplify AI does one thing, and it does not attempt summarization, translation, tone control, or document-level rewriting. The public listing shows a small install base and a modest rating with only a handful of reviews, and the last visible update dates to 2023, so treat it as a small utility rather than a maintained platform. For occasional "what does this actually mean?" moments it is frictionless and free; for anything heavier you will want a fuller writing assistant.

**Pricing & Plans:** Free. The Chrome Web Store listing shows no subscription, in-app purchase, or paid tier — the extension is simply installed and used at no charge.

- **In-place simplification:** The rewritten text replaces the original selection directly on the webpage, so you keep your reading position and surrounding context.
- **Right-click workflow:** Highlight text, open the context menu, and pick Simplify — there is no popup panel or separate app window to manage.
- **Very small footprint:** The packaged extension is roughly 14 KB, so it adds essentially nothing to browser memory or startup time.
- **No data collection declared:** The developer's Chrome Web Store disclosure states that data is not collected or used, which keeps sensitive reading material local to the browsing session.
- **Free of charge:** No account, trial limit, or payment step stands between installing the extension and using it.

**Strengths:** Completely free with no account or sign-up friction; Rewrite happens inside the page, preserving reading flow and context; Extremely small package with a minimal performance cost; Developer disclosure states no data is collected or sold

**Limitations:** Very narrow scope — simplification only, with no summaries or translation; Public listing shows a small user base and a low average rating; Last visible update is from 2023, so ongoing maintenance is not guaranteed

[Profile (Markdown)](https://openaitools.app/tool/simplify-ai.md)

## Frequently Asked Questions

### How do Grammarly and Simplify AI (Chrome Extension) compare in monthly traffic?

Grammarly has 58,867,412 monthly visits, while Simplify AI (Chrome Extension) has 0. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Grammarly has a month-over-month growth rate of -1.5%; Simplify AI (Chrome Extension) has —.

### How does pricing compare?

Grammarly: Freemium. Free plan ($0/month) includes core grammar and spelling checks, tone detection, and 100 generative AI prompts/month; Grammarly Pro costs $12/member/month billed annually ($144/year, or $30/month billed monthly) with full-sentence rewrites, plagiarism/AI detection, team style guides, and 2,000 AI prompts/month, while Enterprise offers custom pricing with unlimited AI prompts and BYOK security. Simplify AI (Chrome Extension): Free. Free. The Chrome Web Store listing shows no subscription, in-app purchase, or paid tier — the extension is simply installed and used at no charge.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [DeepL](https://openaitools.app/tool/deepl) | 95,110,871 | -1.7% | Freemium | Outstanding for context-aware translation and professional writing refinement, but not designed as a dedicated grammar checker. | [.md](https://openaitools.app/tool/deepl.md) |
| 2 | [QuillBot Paraphraser](https://openaitools.app/tool/quillbot-paraphraser) | 36,630,337 | +2.3% | Freemium | Paraphrase, proofread and summarize text with an AI writing workspace | [.md](https://openaitools.app/tool/quillbot-paraphraser.md) |
| 3 | [HumanizeAI.pro](https://openaitools.app/tool/humanizeai-pro) | 9,652,312 | +26% | Free | Free browser AI humanizer that rewrites AI text to read naturally | [.md](https://openaitools.app/tool/humanizeai-pro.md) |
| 4 | [LanguageTool](https://openaitools.app/tool/languagetool) | 5,707,795 | -4.2% | Freemium | Provides strong multilingual grammar and style checking across apps, but offers fewer advanced generative AI features. | [.md](https://openaitools.app/tool/languagetool.md) |
| 5 | [ProWritingAid](https://openaitools.app/tool/prowritingaid-com) | 1,623,266 | +17.6% | Freemium, Paid | Delivers deeper manuscript analysis and structural reports, but has a steeper learning curve than Grammarly. | [.md](https://openaitools.app/tool/prowritingaid-com.md) |
| 6 | [Paperpal](https://openaitools.app/tool/paperpal) | 1,111,641 | +1.7% | Freemium | AI academic writing assistant that edits, cites, and checks your manuscript right where you write | [.md](https://openaitools.app/tool/paperpal.md) |
| 7 | [Hemingway Editor](https://openaitools.app/tool/hemingway-editor) | 605,169 | -8.6% | Free Trial, Paid, Free | Highlights readability and sentence complexity visually, but lacks automated grammar correction and browser-wide extension support. | [.md](https://openaitools.app/tool/hemingway-editor.md) |
| 8 | [paraphrasing.io](https://openaitools.app/tool/paraphrasing-io) | 376,129 | +38.6% | Freemium | Free AI paraphraser with seven rewriting modes | [.md](https://openaitools.app/tool/paraphrasing-io.md) |
| 9 | [Wordtune](https://openaitools.app/tool/wordtune) | 368,771 | -5.8% | Freemium, Free Trial | Great for sentence-level tone adjustments and rewriting, but less comprehensive for standalone grammar rules and style guides. | [.md](https://openaitools.app/tool/wordtune.md) |
| 10 | [HyperWrite](https://openaitools.app/tool/hyperwrite-ai) | 255,429 | +34.4% | Freemium | AI writing assistant with autocomplete, research, and a Chrome extension | [.md](https://openaitools.app/tool/hyperwrite-ai.md) |

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Source: https://openaitools.app/compare/grammarly-vs-simplify-ai

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