# Grammarly vs ProAI

Grammarly records 58,867,412 monthly visits with -1.5% month-over-month growth and Freemium pricing. ProAI records 3,591 monthly visits with -64.6% growth and Paid pricing.

| Metric | [Grammarly](https://openaitools.app/tool/grammarly) | [ProAI](https://openaitools.app/tool/proai) |
| :--- | :--- | :--- |
| Website URL | https://www.grammarly.com | https://proai.co/custom-plan |
| Categories | AI Writing Assistants, AI Writing, AI Grammar Checker, AI Text Generator | AI Consulting, AI Pitch Deck Generator, AI Marketing Plan Generator, AI Research Tool |
| Pricing Model | Freemium | Paid |
| Monthly Visits | 58,867,412 | 3,591 |
| MoM Growth Rate | -1.5% | -64.6% |
| Primary Market | United States | Global |
| Direct Visits | 25,398,749 | 1,402 |
| Review Score | 4.4 | 3.6 |
| Saved Count | 74 | 5 |
| 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)

## ProAI

ProAI started life as a virtual business advisor: you describe your company, market and goals, and the platform drafts the documents a fundraise or go-to-market plan actually needs. Rather than a single chatbot, it bundled several targeted generators — pitch deck builders, market-research summaries, financial models, growth roadmaps and investor prospect lists — so a founder could move from a rough idea to a coherent, shareable package without hiring an analyst.

The product is now part of FundingPath.ai. If you visit proai.co/custom-plan today, you land on a members' welcome page that states ProAI is part of FundingPath.ai and offers existing ProAI members a free plan upgrade. That means the underlying capability set (business planning, funding preparation, market research, strategic planning) is being continued under the FundingPath brand rather than shut down, and existing accounts are being migrated with an incentive attached.

Because the offer is time-limited and the plan structure now belongs to FundingPath, anyone signing up should confirm current tier names, what the upgrade includes and how billing is handled before committing. Treat the earlier ProAI pricing pages as historical — the live commercial terms are the ones shown on the FundingPath site.

**Pricing & Plans:** ProAI operated on a paid subscription model, and the live custom-plan URL is now a FundingPath.ai member landing page that advertises a free plan upgrade for former ProAI members. Because plan tiers and prices are now managed by FundingPath, check the FundingPath checkout for current pricing rather than relying on older ProAI quotes.

- **AI business planning:** Describe your venture, market and goals, and get a structured business plan you can edit, export and share with co-founders or advisors.
- **Pitch deck generation:** Turn your plan into a presentation-style deck with an investor-friendly narrative, so you are not building slides from a blank canvas.
- **Market research summaries:** Pull together market sizing, competitor context and positioning notes that would otherwise take days of manual desk research.
- **Financial modelling and projections:** Build revenue, cost and runway scenarios so you can speak about numbers credibly in a partner or investor conversation.
- **Investor and growth roadmapping:** Work from curated investor lists and a growth roadmap that ties milestones to funding stages.

**Strengths:** Combines several founder-focused generators (deck, research, model, roadmap) in one place instead of separate subscriptions.; The transition to FundingPath means ProAI members retain service and are offered a free upgrade rather than losing access.; Well suited to founders who need a structured first draft quickly and plan to refine it themselves.; Produces investor-facing artefacts — decks, models and lists — that map directly to a fundraise workflow.

**Limitations:** The original proai.co product pages are gone; features and pricing now depend entirely on FundingPath's roadmap.; The advertised upgrade is time-limited, so the terms you see today may not last.; AI-generated plans, models and research still need human validation before you show them to investors.; No free tier is obvious from the current landing page — it reads as a paid, account-based service.

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

## Frequently Asked Questions

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

Grammarly has 58,867,412 monthly visits, while ProAI has 3,591. 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%; ProAI has -64.6%.

### 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. ProAI: Paid. ProAI operated on a paid subscription model, and the live custom-plan URL is now a FundingPath.ai member landing page that advertises a free plan upgrade for former ProAI members. Because plan tiers and prices are now managed by FundingPath, check the FundingPath checkout for current pricing rather than relying on older ProAI quotes.

## 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 | [Presentations.AI](https://openaitools.app/tool/presentations-ai) | 588,784 | -10.9% | Freemium, Contact for Pricing | AI presentations that stay on brand | [.md](https://openaitools.app/tool/presentations-ai.md) |
| 8 | [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) |
| 9 | [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) |
| 10 | [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) |

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

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