# Grammarly vs TextOptimizer

Grammarly records 58,867,412 monthly visits with -1.5% month-over-month growth and Freemium pricing. TextOptimizer records 0 monthly visits with — growth and Freemium pricing.

| Metric | [Grammarly](https://openaitools.app/tool/grammarly) | [TextOptimizer](https://openaitools.app/tool/textoptimizer) |
| :--- | :--- | :--- |
| Website URL | https://www.grammarly.com | https://chromewebstore.google.com/detail/textoptimizer/fdbbkmpdjmpnebmdgbhcodhlafiicnkd |
| Categories | AI Writing Assistants, AI Writing, AI Grammar Checker, AI Text Generator | SEO Writing AI, AI Writing Assistants, AI SEO Tools |
| Pricing Model | Freemium | Freemium |
| 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 | 4.4 |
| 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)

## TextOptimizer

TextOptimizer, published by Webinfo LTD and built by Landor SAS in Paris, has been used by tens of thousands of webmasters, copywriters and SEO specialists. The idea behind it is simple: rather than stuffing keywords, write text that covers a topic the way search engines model it. You paste in a page or draft, the engine compares it against a semantic profile of the subject, and you get a list of terms to add, terms to trim and questions worth answering.

The tool is available two ways. A Chrome extension (4.6 stars across roughly 46 ratings and more than 20,000 users, last updated in November 2024) sits in your browser and optimizes pages you are already reading or editing. The companion website at textoptimizer.com offers the same engine plus a research view for finding content ideas. Because the workflow is lightweight, a single article can often be optimized in under ten minutes.

The company reports that about 70% of optimized pages ranked higher within five weeks. That figure comes from the vendor, so treat it as a directional claim rather than a guarantee — rankings still depend on your authority, competition and overall content strategy. What TextOptimizer genuinely removes is the guesswork about which terms and questions a well-covering page should include.

**Pricing & Plans:** TextOptimizer uses a freemium model: the Chrome extension and basic text optimization are available at no cost, with a sign-up flow on textoptimizer.com to unlock additional analysis. Exact plan limits and any paid tiers are listed inside the app after registration, so check there for current numbers rather than relying on third-party figures.

- **Text optimization score:** Paste a URL or your draft and get a semantic breakdown of how well the text matches the topic search engines associate with it.
- **Related-term suggestions:** The tool recommends terms, entities and synonyms that competing pages use, so you can close content gaps without keyword stuffing.
- **Content and topic ideas:** Discover the questions people ask around a subject and turn them into article angles and sections.
- **In-browser Chrome extension:** Run optimization directly on a page you are viewing in Chrome, without copying text into another tab.
- **Add or remove guidance:** A straightforward editor view shows which words to add or remove so writers can act on the advice immediately.

**Strengths:** Fast, focused optimization that fits into an existing writing workflow instead of replacing it; Combines a browser extension and a web app, so you can optimize without switching tools; Semantic and neural-network approach pushes topical coverage over blunt keyword stuffing; Content-idea and question research helps plan articles before you write them

**Limitations:** The core web app is free but tied to a credit/points model, so heavy optimization work inside a single session can be limiting; It is a text and semantics assistant rather than a full publishing suite, so you still need a separate CMS and analytics stack; Advanced content-planning features live on the website, so the extension alone does not cover every workflow; The interface focuses on optimization guidance, which can feel basic next to modern long-form AI writers

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

## Frequently Asked Questions

### How do Grammarly and TextOptimizer compare in monthly traffic?

Grammarly has 58,867,412 monthly visits, while TextOptimizer 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%; TextOptimizer 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. TextOptimizer: Freemium. TextOptimizer uses a freemium model: the Chrome extension and basic text optimization are available at no cost, with a sign-up flow on textoptimizer.com to unlock additional analysis. Exact plan limits and any paid tiers are listed inside the app after registration, so check there for current numbers rather than relying on third-party figures.

## 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 | Excels at heavy paraphrasing and text rewriting, but offers less seamless inline real-time proofreading across all apps. | [.md](https://openaitools.app/tool/quillbot-paraphraser.md) |
| 3 | [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) |
| 4 | [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) |
| 5 | [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) |
| 6 | [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) |
| 7 | [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) |
| 8 | [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) |
| 9 | [Linguix](https://openaitools.app/tool/linguix) | 227,398 | -4.5% | Freemium | Offers similar inline grammar correction and snippets, but with a smaller ecosystem of browser extensions and integrations. | [.md](https://openaitools.app/tool/linguix.md) |
| 10 | [SEO.AI](https://openaitools.app/tool/seo-ai) | 152,848 | -2.7% | Free Trial, Paid | The AI SEO agent that researches, writes, publishes, and builds links for you | [.md](https://openaitools.app/tool/seo-ai.md) |

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Source: https://openaitools.app/compare/grammarly-vs-textoptimizer

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