# Grammarly vs Postiz

Grammarly records 58,867,412 monthly visits with -1.5% month-over-month growth and Freemium pricing. Postiz records 524,221 monthly visits with +14.2% growth and Free Trial, Paid, Contact for Pricing pricing.

| Metric | [Grammarly](https://openaitools.app/tool/grammarly) | [Postiz](https://openaitools.app/tool/postiz) |
| :--- | :--- | :--- |
| Website URL | https://www.grammarly.com | https://postiz.com |
| Categories | AI Writing Assistants, AI Writing, AI Grammar Checker, AI Text Generator | AI Social Media, AI Scheduling, AI Agent, AI Image Generator |
| Pricing Model | Freemium | Free Trial, Paid, Contact for Pricing |
| Monthly Visits | 58,867,412 | 524,221 |
| MoM Growth Rate | -1.5% | +14.2% |
| Primary Market | United States | United States |
| Direct Visits | 25,398,749 | 211,051 |
| 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)

## Postiz

Postiz puts scheduling and AI agents in the same tool. You connect the channels you already use, compose once, and publish to every selected network on the schedule you choose, previewing everything on a visual calendar before it goes live. What makes it different is how agents plug in: through an MCP server and CLI, assistants such as Claude, ChatGPT, Claude Code, Codex, Cursor, Gemini, Grok and OpenClaw can draft, queue, and even read back performance data. You type a goal like "schedule these clips to TikTok and Instagram, eight hours apart, all week" and the agent executes it as drafts or live posts.

For teams, Postiz adds the operational pieces: invite collaborators, assign posts, keep multiple channels organized in one workspace, and use auto actions that trigger follow-up posts, likes, or comments when a post hits a milestone such as 100 likes. Analytics show which posts and channels perform best so you can double down on what works. The platform is also friendly to builders and automation: a public API, OAuth2, and an SDK let you ship your own posting app, while native integrations with n8n and Make.com (plus Zapier) let workflows draft, approve and publish hands-free.

Postiz is widely used by AI-first marketers, developers, and automation teams, and it is known for being open source, which many users credit as their entry point before subscribing to the hosted service. A built-in Canva-like image editor and AI image generation cover the visual side of a post, and Discord is available for support.

**Pricing & Plans:** Free trial and paid plans. A 7-day trial costs $0, after which paid subscription tiers apply; custom/enterprise arrangements are available on request. Check the official pricing page for current per-plan limits.

- **One calendar for 30+ networks:** Write a post once and publish to every selected channel, previewing the whole schedule visually before it goes out.
- **Agentic scheduling via MCP and CLI:** Claude, ChatGPT, Claude Code, Cursor, Grok, OpenClaw and others draft, schedule and analyze posts programmatically.
- **Team collaboration:** Invite teammates, assign posts, and keep every channel and approval organized in a shared workspace.
- **Auto actions:** Set a milestone like 100 likes and Postiz automatically posts, likes, or comments to keep engagement going.
- **API, SDK and automations:** Build posting apps with OAuth2 and the public API, or wire workflows through n8n, Make.com and Zapier.

**Strengths:** Agents can post directly through MCP and CLI, which most competitors make hard; Supports a very large number of channels including niche ones like Bluesky, Mastodon and Lemmy; Open source with a public API and SDK for building on top; Calendar preview, auto actions and analytics in one workspace

**Limitations:** Per-platform formatting quirks still require review before publishing; Full automation depends on learning the CLI or MCP setup

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

## Frequently Asked Questions

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

Grammarly has 58,867,412 monthly visits, while Postiz has 524,221. 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%; Postiz has +14.2%.

### 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. Postiz: Free Trial, Paid, Contact for Pricing. Free trial and paid plans. A 7-day trial costs $0, after which paid subscription tiers apply; custom/enterprise arrangements are available on request. Check the official pricing page for current per-plan limits.

## 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 | [Simplified](https://openaitools.app/tool/simplified) | 363,407 | +1.7% | Freemium | Agentic marketing platform for campaigns, creative, and social publishing | [.md](https://openaitools.app/tool/simplified.md) |
| 9 | [SocialBee](https://openaitools.app/tool/socialbee) | 266,280 | -4.4% | Free Trial, Paid | Features AI-powered content creation and category-based scheduling, though less centered around autonomous agentic execution. | [.md](https://openaitools.app/tool/socialbee.md) |
| 10 | [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) |

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

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