# Grammarly vs SUFY

Grammarly records 58,867,412 monthly visits with -1.5% month-over-month growth and Freemium pricing. SUFY records 7,486 monthly visits with -54.9% growth and Freemium, Paid pricing.

| Metric | [Grammarly](https://openaitools.app/tool/grammarly) | [SUFY](https://openaitools.app/tool/sufy) |
| :--- | :--- | :--- |
| Website URL | https://www.grammarly.com | https://sufy.com |
| Categories | AI Writing Assistants, AI Writing, AI Grammar Checker, AI Text Generator | AI Video Generator, AI Avatar Generator, AI Text-to-Speech, AI API |
| Pricing Model | Freemium | Freemium, Paid |
| Monthly Visits | 58,867,412 | 7,486 |
| MoM Growth Rate | -1.5% | -54.9% |
| Primary Market | United States | Hong Kong SAR China |
| Direct Visits | 25,398,749 | 2,984 |
| Review Score | 4.4 | 4.2 |
| 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)

## SUFY

SUFY began as a storage and delivery platform — the site describes its distributed object storage as developed over twelve years — and has since layered media and AI capabilities on top. The storage side is S3-compatible, meaning you can migrate existing workflows by changing a single line of code rather than rewriting your integration. Alongside it sits a CDN with thousands of global nodes spanning more than a hundred countries, aimed at low-latency delivery for static and media assets.

The differentiating piece is real-time intelligent media processing. Rather than pre-generating and storing dozens of derivative files, SUFY applies transformations on the fly via a style parameter, so an image or video can be resized, compressed or reformatted at request time. The site's own example shows a file shrinking from roughly 2.37 MB to 97 KB, which illustrates the on-the-fly optimisation use case for image-heavy sites and apps.

The newest addition is a media AI suite covering AI avatars: avatar cloning, text scripting and video generation, letting teams produce presenter-style videos without a camera. The platform is positioned for developers building media products, e-commerce sites, SaaS apps and content operations that need storage, delivery and generation under one roof, with API access and documentation provided for programmatic use.

**Pricing & Plans:** Free to start with 10 GB of object storage and 100 GB of CDN traffic per month, no credit card required. Beyond the free tier the platform is billed as a paid cloud service with API access; check the pricing page for current usage rates.

- **S3-compatible object storage:** Move existing workloads over by changing a single line of code, using a large-scale distributed storage system instead of rewriting integrations.
- **Global CDN acceleration:** Delivery through 20,000+ nodes across 100+ countries and regions, designed for low latency and stable throughput wherever your users are.
- **Real-time media processing:** Apply resize, compression and format transformations on demand through a single style parameter instead of pre-generating derivative files.
- **AI avatar and video generation:** Avatar cloning, text-based scripting and video generation let you produce presenter videos without filming, using the same platform and API.
- **Developer-first API and docs:** Public API documentation and compatible endpoints make it straightforward to wire storage, delivery and AI generation into existing pipelines.

**Strengths:** Combines storage, CDN, media processing and AI video generation in one platform and API; S3 compatibility makes migration from existing object storage low-effort; Generous free tier with 10 GB storage and 100 GB CDN traffic monthly, no card required; Real-time transformation avoids storing many pre-generated derivatives

**Limitations:** Positioning is broad, so it competes with dedicated best-of-breed vendors in each area; AI avatar video generation is newer and less documented than the storage and CDN core; Details on data residency and compliance certifications are limited on the public site

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

## Frequently Asked Questions

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

Grammarly has 58,867,412 monthly visits, while SUFY has 7,486. 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%; SUFY has -54.9%.

### 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. SUFY: Freemium, Paid. Free to start with 10 GB of object storage and 100 GB of CDN traffic per month, no credit card required. Beyond the free tier the platform is billed as a paid cloud service with API access; check the pricing page for current usage rates.

## 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 | [fal.ai](https://openaitools.app/tool/fal-ai) | 3,093,684 | -3.7% | Paid, pay-as-you-go usage-based pricing | One API for 1,500+ production-ready generative media models | [.md](https://openaitools.app/tool/fal-ai.md) |
| 5 | [BytePlus](https://openaitools.app/tool/byteplus) | 3,036,127 | -30% | Freemium, Paid | AI-native cloud for building and scaling enterprise AI | [.md](https://openaitools.app/tool/byteplus.md) |
| 6 | [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) |
| 7 | [Vast.ai](https://openaitools.app/tool/vast-ai) | 1,257,554 | +2.8% | Paid | Rent cloud GPUs by the second from a global marketplace | [.md](https://openaitools.app/tool/vast-ai.md) |
| 8 | [Modal](https://openaitools.app/tool/modal-com) | 1,196,021 | +30.2% | Freemium, Contact for Pricing | Serverless cloud infrastructure for AI and data workloads | [.md](https://openaitools.app/tool/modal-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 | [Atlas Cloud](https://openaitools.app/tool/atlas-cloud) | 777,031 | -16.4% | Paid | One OpenAI-compatible API for 500+ image, video, audio, and LLM models | [.md](https://openaitools.app/tool/atlas-cloud.md) |

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

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