# Grammarly vs SurfSense

Grammarly records 58,867,412 monthly visits with -1.5% month-over-month growth and Freemium pricing. SurfSense records 61,868 monthly visits with -17.4% growth and Freemium, Free Trial, Contact for Pricing pricing.

| Metric | [Grammarly](https://openaitools.app/tool/grammarly) | [SurfSense](https://openaitools.app/tool/surfsense) |
| :--- | :--- | :--- |
| Website URL | https://www.grammarly.com | https://www.surfsense.com |
| Categories | AI Writing Assistants, AI Writing, AI Grammar Checker, AI Text Generator | AI Report Writing, AI Cover Generator, AI Pitch Deck Generator, AI Email Generator |
| Pricing Model | Freemium | Freemium, Free Trial, Contact for Pricing |
| Monthly Visits | 58,867,412 | 61,868 |
| MoM Growth Rate | -1.5% | -17.4% |
| Primary Market | United States | United States |
| Direct Visits | 25,398,749 | 20,999 |
| Review Score | 4.4 | 4.5 |
| Saved Count | 74 | 3 |
| 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)

## SurfSense

SurfSense is built around a simple idea: a research assistant should not require an account, a cloud upload, or a subscription you cannot audit. You install a normal desktop app for Windows, macOS or Linux — no Docker and no terminal required — and on first launch you pick a model. A small local model downloads once and runs on your CPU, meaning you can literally disconnect the network and keep asking questions about the sources you have already indexed. Alternatively you can paste a key for OpenAI, Anthropic or any OpenAI-compatible endpoint, and that key stays on the machine that uses it.

On top of that index sits a toolkit of outputs. Any set of sources can be turned into a slide deck, a written report, a briefing, a podcast-style audio conversation, a mind map, flashcards, a quiz, a spreadsheet of extracted tables, or a standalone web page. Because generation happens locally, there is no per-minute fee and nothing is uploaded, which matters for lawyers, accountants, consultants and engineers working with case files, ledgers or client documents they are not permitted to send to a vendor.

The free core is genuinely free and open source, with no account and no usage cap. Paid licences exist only to unlock SurfSense's own server-side scraper plugins (among them Google Search, Reddit, YouTube, Instagram, TikTok, Google Maps, Amazon, Walmart, Indeed and a general web crawler) and priority support. Plugins you add yourself — third-party plugins and MCP servers — need no licence. Enterprise agreements mirror the licensing and plugin endpoints inside a customer's own network so that nothing egresses at all.

**Pricing & Plans:** The application and all its updates are free forever — no account, no trial clock, no usage cap. A 14-day plugin licence is included with the free download (email only, no card). An Individual licence costs $60 for the first year and $120 a year thereafter and unlocks every SurfSense plugin plus priority support and one feature-build request per year. An Enterprise deployment is custom-priced and invoiced annually. Self-building from source is also free.

- **Air-gapped, self-hosted operation:** Install a normal desktop app on Windows, macOS or Linux and run it with no account. With a local model you can pull the network cable and keep querying your indexed sources, since nothing is sent to a vendor.
- **Bring your own model, or run a local one:** Choose a bundled local Qwen or Gemma model at first launch, or paste a key for OpenAI, Anthropic or any OpenAI-compatible endpoint. The model is a setting rather than a fixed vendor choice.
- **Twelve artifact formats:** Turn one set of sources into slide decks, reports, briefing notes, podcasts, mind maps, flashcards, quizzes, Markdown, Word, PDF, HTML and spreadsheet outputs — generated and stored locally.
- **Scraper plugins for live sources:** Optional plugins pull research from Google Search, Reddit, YouTube, Instagram, TikTok, Google Maps, Amazon, Walmart, Indeed and the open web, and anyone can register their own MCP server.
- **Open source and enterprise-deployable:** The source is public and auditable, and an Enterprise deployment mirrors licensing and plugin endpoints inside your own network with model and network policy you control and a local audit log of outbound calls.

**Strengths:** Runs fully offline with a local model, so sensitive sources never leave your machine; No account, no sign-up and no usage cap on the core application; Choice of model — bundled local models or your own OpenAI, Anthropic or compatible key; Open source and auditable, with a wide range of output formats from a single source set

**Limitations:** The first local model download and setup step takes time and some technical patience; The most useful scraper plugins sit behind a paid licence, which runs $60 the first year then $120 a year; Collaboration and cloud sync are intentionally absent, so it suits individual work better than shared team workspaces

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

## Frequently Asked Questions

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

Grammarly has 58,867,412 monthly visits, while SurfSense has 61,868. 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%; SurfSense has -17.4%.

### 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. SurfSense: Freemium, Free Trial, Contact for Pricing. The application and all its updates are free forever — no account, no trial clock, no usage cap. A 14-day plugin licence is included with the free download (email only, no card). An Individual licence costs $60 for the first year and $120 a year thereafter and unlocks every SurfSense plugin plus priority support and one feature-build request per year. An Enterprise deployment is custom-priced and invoiced annually. Self-building from source is also free.

## 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 | [ChatPDF](https://openaitools.app/tool/chatpdf) | 1,044,477 | -3.7% | Freemium | Chat with any PDF, video, or website and get cited answers in seconds | [.md](https://openaitools.app/tool/chatpdf.md) |
| 7 | [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) |
| 8 | [AnythingLLM](https://openaitools.app/tool/anythingllm) | 512,269 | +12.9% | Freemium | Own your intelligence: a private AI assistant that runs entirely on your machine | [.md](https://openaitools.app/tool/anythingllm.md) |
| 9 | [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) |
| 10 | [iWeaver](https://openaitools.app/tool/iweaver) | 336,462 | +32.9% | Freemium | AI agents that turn your own documents into summaries, mind maps and reports | [.md](https://openaitools.app/tool/iweaver.md) |

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

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