# Grammarly vs Polymer

Grammarly records 58,867,412 monthly visits with -1.5% month-over-month growth and Freemium pricing. Polymer records 3,179 monthly visits with -18% growth and Contact for Pricing pricing.

| Metric | [Grammarly](https://openaitools.app/tool/grammarly) | [Polymer](https://openaitools.app/tool/polymer) |
| :--- | :--- | :--- |
| Website URL | https://www.grammarly.com | https://www.polymerhq.io |
| Categories | AI Writing Assistants, AI Writing, AI Grammar Checker, AI Text Generator | AI Detector, AI Monitor, No-Code&Low-Code, Large Language Models (LLMs) |
| Pricing Model | Freemium | Contact for Pricing |
| Monthly Visits | 58,867,412 | 3,179 |
| MoM Growth Rate | -1.5% | -18% |
| Primary Market | United States | United States |
| Direct Visits | 25,398,749 | 1,251 |
| Review Score | 4.4 | 4.2 |
| Saved Count | 74 | 149 |
| 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)

## Polymer

Polymer positions itself as data security at runtime rather than at rest. As AI agents increasingly operate alongside employees in everyday tools, data can leave an organisation through prompts, generated files, messages, pull requests and commits. Polymer watches those flows across the AI and SaaS ecosystem and applies policies tailored to how each team actually uses AI — grouping human and non-human identities so the same rules govern both.

The platform's core loop is detect, classify, quantify and remediate. It continuously monitors data in motion and at rest, labels sensitive assets according to custom security policies, and scores risk so teams can see shadow AI usage, insider threat activity and misconfigurations. Enforcement happens live: sensitive content can be redacted, file access revoked, or a custom workflow triggered with or without human review. Real-time training and response is built in so employees become part of the defence rather than the gap. Audit logs are mapped to frameworks including HIPAA, SOC 2, CCPA and GDPR for continuous compliance reporting.

Polymer advertises itself as enterprise-ready, with cloud or self-hosted single-tenant deployment, role-based access controls, SOC 2 Type II compliance and integration into existing stacks. Published customer quotes come from security leaders at companies such as RSA, ClickUp, Routefusion, Signify Health and Medly, and the company cites metrics like 99% accuracy in finding sensitive data across SaaS and reductions from eight hours a week of alert triage to near zero.

It is worth noting for any visitor that some blog and library pages on the domain currently carry unrelated low-quality promotional content, which is worth treating with caution. That does not affect the legitimacy of the underlying product, which remains an actively marketed enterprise security platform. Pricing is not published — Polymer sells through demos and direct conversations, so cost depends on scope, deployment model and data volume.

**Pricing & Plans:** Contact for pricing. Polymer does not publish tiers or rates; access is arranged through a demo request and a direct sales conversation, with cost depending on deployment model and scale.

- **Identity-aware detection and response:** Build context-driven policies for your organisation's unique AI usage, then group human and non-human identities to control how each can interact with data.
- **Data detection, classification and labelling:** Continuously monitor data in motion and at rest and label sensitive assets according to your own security policies.
- **Risk quantification:** Reports and risk scores surface shadow AI usage, insider threats and misconfigurations so priorities are clear.
- **Automated runtime enforcement:** Redact sensitive data, revoke file access and trigger custom workflows in real time, with or without human approval.
- **Continuous compliance logging:** Generate audit logs mapped to frameworks such as HIPAA, SOC 2, CCPA and GDPR to support ongoing compliance evidence.

**Strengths:** Focuses on runtime enforcement, not just post-hoc reporting; Covers both human and non-human (AI agent) identities in one policy model; Cloud or self-hosted single-tenant deployment options for security-sensitive buyers; Named customer evidence from recognisable security teams

**Limitations:** No published pricing, so evaluation requires a sales conversation; Enterprise-oriented complexity that likely overwhelms very small teams; Some blog and library content on the domain appears to be unrelated promotional material of low quality

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

## Frequently Asked Questions

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

Grammarly has 58,867,412 monthly visits, while Polymer has 3,179. 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%; Polymer has -18%.

### 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. Polymer: Contact for Pricing. Contact for pricing. Polymer does not publish tiers or rates; access is arranged through a demo request and a direct sales conversation, with cost depending on deployment model and scale.

## 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 | [GPTZero](https://openaitools.app/tool/gptzero-me) | 23,246,989 | +32.5% | Freemium, Paid | AI detection and writing verification built for schools and editors | [.md](https://openaitools.app/tool/gptzero-me.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 | [hCaptcha](https://openaitools.app/tool/hcaptcha-com) | 5,446,045 | +18.7% | Freemium, Free Trial, Contact for Pricing, Free | Privacy-first bot detection and fraud prevention for the web | [.md](https://openaitools.app/tool/hcaptcha-com.md) |
| 6 | [Datadog](https://openaitools.app/tool/datadog) | 5,175,760 | -4.8% | Freemium, Free Trial, Paid, Contact for Pricing, Free | Unified observability, security and incident response for cloud-scale engineering teams | [.md](https://openaitools.app/tool/datadog.md) |
| 7 | [Copyleaks](https://openaitools.app/tool/copyleaks) | 2,402,494 | -14.1% | Paid, Contact for Pricing | Enterprise AI and plagiarism detection for content integrity | [.md](https://openaitools.app/tool/copyleaks.md) |
| 8 | [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) |
| 9 | [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) |
| 10 | [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) |

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

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