# Aithor vs Grammarly

Aithor records 345,936 monthly visits with +11.8% month-over-month growth and Freemium pricing. Grammarly records 58,867,412 monthly visits with -1.5% growth and Freemium pricing.

| Metric | [Aithor](https://openaitools.app/tool/aithor) | [Grammarly](https://openaitools.app/tool/grammarly) |
| :--- | :--- | :--- |
| Website URL | https://aithor.com | https://www.grammarly.com |
| Categories | AI Writing Assistants, AI Research Tool, AI Writing, AI Essay Writer | AI Writing Assistants, AI Writing, AI Grammar Checker, AI Text Generator |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 345,936 | 58,867,412 |
| MoM Growth Rate | +11.8% | -1.5% |
| Primary Market | United States | United States |
| Direct Visits | 128,057 | 25,398,749 |
| Review Score | 3.9 | 4.4 |
| Saved Count | 0 | 74 |
| Supported Platforms | Website | Website |

## Aithor

Aithor positions itself as an "undetectable AI writer" for academic work. Instead of only generating paragraphs, it walks you through the research process: you pick a topic or paste your own material, the assistant proposes an outline and section suggestions, and you build the text with AI help for arguments, detail, rewording, and polishing. A built-in database of 10M+ verified academic sources with PDF access lets you attach real references rather than fabricated ones, and the tool generates reference lists in MLA, APA, Chicago, and numerous other styles.

Beyond the core essay workflow, Aithor ships a bundle of supporting utilities: an AI detector, an AI humanizer, a paraphraser, a grammar and spelling checker, a citation and bibliography generator, an outline generator, an abstract and title generator, and a resume builder. The product markets itself for essays, literature reviews, case studies, research, and creative writing, and it emphasizes that users stay in control of the final voice and quality of the text.

The pricing model is freemium: a free tier plus paid subscriptions. Plans, credit allowances, and feature limits change over time, so check the pricing page for current numbers.

**Pricing & Plans:** Freemium — a free tier with limited usage plus paid subscription plans; see the pricing page for current tiers and billing options.

- **AI essay and paper drafting:** Generate drafts and section-by-section content for essays, literature reviews, case studies, reports, and research papers while keeping your own tone.
- **10M+ academic source database:** Search a large open-source scholarly library with PDF access and insert real, verifiable references instead of invented ones.
- **Automatic citation lists:** Produce and refresh reference lists in MLA, APA, Chicago, Harvard, IEEE, and many other styles with correct formatting.
- **Structure and outline builder:** Get suggested section flows and topic ideas so longer academic texts stay logically organized from introduction to conclusion.
- **Companion writing utilities:** A paraphraser, grammar checker, AI detector, AI humanizer, and resume builder sit alongside the main academic writer.

**Strengths:** Integrates a genuine academic source library with PDFs, reducing reliance on invented citations; Wide toolkit beyond writing: citations, paraphrasing, grammar, detection, and humanizing in one place; Generous free tier makes it easy to evaluate before subscribing; Multilingual interface covering many regions and languages

**Limitations:** Free tier usage limits are tight, so heavier users need a paid plan; AI detection and humanizing claims should be treated with caution rather than as guarantees; Output still needs careful human review for accuracy, originality, and academic integrity

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

## 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)

## Frequently Asked Questions

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

Aithor has 345,936 monthly visits, while Grammarly has 58,867,412. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Aithor has a month-over-month growth rate of +11.8%; Grammarly has -1.5%.

### How does pricing compare?

Aithor: Freemium. Freemium — a free tier with limited usage plus paid subscription plans; see the pricing page for current tiers and billing options. 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.

## 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 | [Perplexity](https://openaitools.app/tool/perplexity-ai) | 88,310,223 | -3.7% | Freemium | Real-time conversational web research with inline citations, but lacks structured academic outlining and citation management. | [.md](https://openaitools.app/tool/perplexity-ai.md) |
| 3 | [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) |
| 4 | [Semantic Scholar](https://openaitools.app/tool/semantic-scholar) | 8,198,672 | +5.8% | Free | Completely free access to extensive scientific literature, but lacks built-in AI writing or essay generation assistants. | [.md](https://openaitools.app/tool/semantic-scholar.md) |
| 5 | [Scribbr](https://openaitools.app/tool/scribbr) | 7,530,803 | +14.6% | Freemium | Combines AI tools with trusted human proofreading services, but focuses more on editing than automated essay generation. | [.md](https://openaitools.app/tool/scribbr.md) |
| 6 | [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) |
| 7 | [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) |
| 8 | [Jenni](https://openaitools.app/tool/jenni) | 1,498,133 | +5.2% | Freemium | Provides seamless real-time academic autocomplete and citation searching, but less automated long-form essay structuring than Aithor. | [.md](https://openaitools.app/tool/jenni.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 | [Scite](https://openaitools.app/tool/scite) | 841,974 | +1.1% | Free Trial, Contact for Pricing | Offers superior reference validation using Smart Citations, but functions primarily as a research discovery tool rather than an essay builder. | [.md](https://openaitools.app/tool/scite.md) |

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

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