GrammarPro
GrammarPro: A simple web checker with broad basic corrections and a permanent free plan. Ranked #51 of 88 in Grammar Checkers by our editors (3.6/10); pricing: Free plan; best for affordable basic correction in a simple web app.
At a glance
- Editor score3.6 / 10
- PricingFree plan
- Best forAffordable basic correction in a simple web app
- Free planYes
- Paid from$59.99/yr
- Tone detectionYes
- Facts checked20 Sep 2026
Where it wins
- Covers grammar, spelling, punctuation, clarity, tone, and concision
- Free plan supports basic checks without requiring an account
- Real-time corrections include inline explanations and style guidance
Where it doesn't
- Free use is limited to three or five checks per day
- Pro limits each submission to 5,000 words
- Available through the web only, without browser, desktop, or mobile apps
Our verdict on GrammarPro
GrammarPro is a browser-based AI writing checker for students, professionals, writers, and non-native speakers. It focuses on core writing correction in a simple web app, covering grammar, spelling, punctuation, clarity, formal-tone rewriting, and concise-writing suggestions. Corrections are streamed in real time, and inline explanations provide context for suggested changes. Basic use requires neither installation nor signup, while text processing is handled through OpenAI’s API.
Pricing is structured around a permanent Free plan and two Pro options. Free allows three grammar checks per day without an account or five when signed in, with a 500-word limit and all six checking modes. Pro Monthly costs $7.99 per month and adds unlimited checks, a 5,000-word limit, priority processing, all six modes, and the ability to cancel anytime. Pro Annual costs $59.99 per year with the same listed features. The paid plans suit users who need frequent checking or longer submissions, while the free tier fits occasional short corrections.
The main trade-off is platform scope. GrammarPro runs on the web and does not include a browser extension, desktop app, or mobile app, so it is better suited to text pasted into a browser than to writing workflows spread across installed tools. Its feature set is broad for basic correction, including tone and style suggestions, but buyers seeking integrated editing across multiple devices or applications should consider a product with wider platform coverage. Choose GrammarPro for accessible, straightforward correction; choose an alternative if native apps or embedded writing assistance are essential.
Your product? Our editors can test GrammarPro in depth and publish a review, labelled as paid · from $149/mo →
GrammarPro pricing
All 3 GrammarPro plans and prices →
GrammarPro fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $59.99/yr |
| Browser extension | No |
| Desktop app | No |
| Mobile app | No |
| Style suggestions | Yes |
| Tone detection | Yes |
| Languages supported | Not verified |
| Deployment | Cloud, Browser extension |
| Platforms | Web |
| Support | |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Pricing | Free plan (source) |
| Website | grammarpro.ai |
| Facts checked | 20 Sep 2026 |
Alternatives to GrammarPro
- GrammarlyA broad writing assistant with strong grammar, tone, rewriting, and AI coverage.9.4
- LanguageToolA broad multilingual checker with open-source and self-hosting options.9.2
- Microsoft EditorA strong Microsoft 365 writing assistant with focused platform coverage.9.0
See all GrammarPro alternatives →
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Featured on iTechGuides
GrammarPro is listed in our Grammar Checkers directory. Add the badge to your site — it links back to this page.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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