# Grammarly vs Mindgard

Grammarly records 58,867,412 monthly visits with -1.5% month-over-month growth and Freemium pricing. Mindgard records 153,455 monthly visits with +1.3% growth and Contact for Pricing pricing.

| Metric | [Grammarly](https://openaitools.app/tool/grammarly) | [Mindgard](https://openaitools.app/tool/mindgard) |
| :--- | :--- | :--- |
| Website URL | https://www.grammarly.com | https://mindgard.ai |
| Categories | AI Writing Assistants, AI Writing, AI Grammar Checker, AI Text Generator | AI Testing, Large Language Models (LLMs), AI Developer Tools |
| Pricing Model | Freemium | Contact for Pricing |
| Monthly Visits | 58,867,412 | 153,455 |
| MoM Growth Rate | -1.5% | +1.3% |
| Primary Market | United States | United States |
| Direct Visits | 25,398,749 | 21,556 |
| Review Score | 4.4 | 4.3 |
| Saved Count | 74 | 0 |
| Supported Platforms | Website | Website |

## 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)

## Mindgard

Mindgard is an AI security platform that approaches protecting AI systems the way an attacker would. Instead of starting with a checklist of prompts, it begins with agent-native reconnaissance: profiling the models, agents, tools, instructions, permissions and behaviours that make up an AI system, so it can identify the attack paths most likely to cause real damage. That reconnaissance is fed by vulnerability intelligence drawn from the company's own published disclosures.

The platform spans the full security loop. Recon surfaces what an AI deployment can actually do; red teaming continuously tests agents and systems against evolving attacks; assessment validates which weaknesses are genuinely exploitable and quantifies their impact; runtime protection and remediation guidance help teams close gaps and verify that defences hold as the system changes. This matters because AI behaviour shifts with every model update, prompt change or new tool integration, which makes one-off testing insufficient.

Mindgard originated from more than a decade of AI security research at Lancaster University and says its technology has been behind 175+ publicly disclosed vulnerabilities in prominent AI systems. It is designed to slot into existing engineering workflows through APIs, CI/CD pipelines and Burp Suite integration, so AI security assessment can run before deployment and continuously in production rather than as a periodic external exercise.

**Pricing & Plans:** Mindgard does not publish public pricing. Plans are quoted based on scope, deployment model and enterprise requirements. Contact the team for a demo and custom quote.

- **Attacker-style AI reconnaissance:** Agent-native reconnaissance maps models, agents, tools, instructions, permissions and behaviours the way an attacker would before launching attacks.
- **Continuous AI red teaming:** Continuous, adaptive testing of AI agents and systems against evolving attack techniques, rather than one-off audits.
- **Proprietary vulnerability intelligence:** Findings are backed by a knowledge base built from more than 175 publicly disclosed AI vulnerabilities across major AI systems.
- **Remediation and runtime protection:** Runtime protections and remediation guidance help close defensive gaps and verify that fixes actually hold.
- **Governance and compliance support:** Risk reduction, evidence and reporting aligned to AI policies and governance requirements, keeping AI compliant as it changes.

**Strengths:** Attacker-led methodology focuses on provably exploitable risk rather than generic prompt noise; Backed by a decade of Lancaster University AI security research and 175+ disclosures; Covers recon, red teaming, assessment, remediation and runtime protection in one platform; Integrates with CI/CD, APIs and Burp Suite for continuous assurance

**Limitations:** Requires a sales conversation; no transparent public pricing; Some capabilities overlap with other AI security vendors, so evaluation takes care; Fully realising value assumes integration into CI/CD and security workflows

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

## Frequently Asked Questions

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

Grammarly has 58,867,412 monthly visits, while Mindgard has 153,455. 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%; Mindgard has +1.3%.

### 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. Mindgard: Contact for Pricing. Mindgard does not publish public pricing. Plans are quoted based on scope, deployment model and enterprise requirements. Contact the team for a demo and custom quote.

## 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 | [Arize AI](https://openaitools.app/tool/arize-com) | 249,028 | +3.2% | Paid, Contact for Pricing | Agent observability, evaluation, and continuous improvement for production AI | [.md](https://openaitools.app/tool/arize-com.md) |
| 10 | [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) |

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

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