# Grammarly vs Replai

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

| Metric | [Grammarly](https://openaitools.app/tool/grammarly) | [Replai](https://openaitools.app/tool/replai) |
| :--- | :--- | :--- |
| Website URL | https://www.grammarly.com | https://chrome.google.com/webstore/detail/replai-%E2%80%93-chatgpt-replies/ompendcjjegjkojdkagdoohbbjcaaopb |
| Categories | AI Writing Assistants, AI Writing, AI Grammar Checker, AI Text Generator | AI Reply, AI Response Generator, AI Twitter, AI Social Media |
| 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 | 4.1 |
| Saved Count | 74 | 1 |
| 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)

## Replai

Replai began as a ChatGPT-powered Chrome extension for social media replies, described as a way to create meaningful, personalized comments for LinkedIn and X roughly ten times faster. That extension is still listed publicly and remains the fastest way to use the tool inside a social feed: you open a post, click the icon, pick a style and tone, and get a shareable reply. In parallel, the replai.so web application has grown into a broader AI email assistant that connects to Gmail or Outlook and drafts replies in your own voice.

The core idea across both surfaces is personalization. Rather than handing you a generic AI paragraph, Replai builds a 'reply identity' from content you choose to share — your typical tone, the length you prefer, the phrases and sign-offs you actually use. That identity informs every draft, and the platform reports that most users send the first generated draft with little or no editing. Supporting features include automatic inbox sorting, a free email reply generator that needs no account, and a meeting-note companion that transcribes calls and summarises decisions.

Pricing follows a freemium pattern. The extension is free to install with optional in-app purchases, and the web assistant offers a free tier with a daily reply allowance plus a Pro plan for unlimited drafting and the full toolkit. Replai positions itself as a productivity layer that sits inside the tools you already use, so the value shows up as time saved rather than as a separate destination site.

**Pricing & Plans:** Freemium. The Chrome extension is free with optional in-app purchases. The web app offers a free tier (including a no-account email reply generator and a daily AI reply allowance) and a Pro plan at $6/month billed annually ($72/year) or $8/month billed monthly, which unlocks unlimited replies, inbox triage, meeting notes and scheduling.

- **One-click social replies:** The extension generates ready-to-send comments and posts for LinkedIn and X with a single click, cutting the blank-page problem out of social engagement.
- **Style and tone controls:** Replies can be tuned by style, tone and length so the output matches how you want to come across in a given conversation.
- **Voice-matching drafts:** Replai builds a personal profile from emails you share, capturing tone, phrasing and sign-off so drafts sound like you rather than like a template.
- **Inbox organizer:** Connected inboxes are automatically sorted into categories such as Priority, Needs Reply, FYI and Unsubscribe.
- **Meeting notes:** Record calls and get a transcript plus a clean summary of decisions and action items.

**Strengths:** Works directly inside LinkedIn, X, Gmail and Outlook instead of forcing a separate workflow; Learns your personal tone and phrasing so drafts need less rewriting; Free tier and a no-account reply generator make it easy to evaluate; Covers several inbox-adjacent jobs: replies, triage, meeting notes and scheduling

**Limitations:** Chrome extension listing still frames the tool around LinkedIn/X comments, while the current product website focuses mostly on email — messaging can feel inconsistent; Full reply-style learning and unlimited drafting sit behind the paid Pro plan; Extension hasn't been updated since 2024, so browser-support longevity is uncertain; May need account connection for the best personalization, which some users prefer to avoid

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

## Frequently Asked Questions

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

Grammarly has 58,867,412 monthly visits, while Replai 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%; Replai 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. Replai: Freemium. Freemium. The Chrome extension is free with optional in-app purchases. The web app offers a free tier (including a no-account email reply generator and a daily AI reply allowance) and a Pro plan at $6/month billed annually ($72/year) or $8/month billed monthly, which unlocks unlimited replies, inbox triage, meeting notes and scheduling.

## 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 | [InstaText](https://openaitools.app/tool/instatext-io) | 62,004 | -18.3% | Freemium, Free Trial | Provides exceptional clarity and style rewrites for professional text, but lacks broader plagiarism checking and citation tools. | [.md](https://openaitools.app/tool/instatext-io.md) |

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

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