GrammarPro

Plans and prices

Every plan, in full

On the record

AI engine

The About page says GrammarPro is powered by GPT-4o-mini.grammarpro.ai · read 8 Oct 2026

Browser extension

Nogrammarpro.ai · read 20 Sep 2026

Checking modes

It offers Grammar, Spelling, Punctuation, Clarity, Formal Tone, and Concise Writing modes.grammarpro.ai · read 8 Oct 2026

Corrections

The homepage says corrections stream word by word in real time and include explanations for suggested changes.grammarpro.ai · read 8 Oct 2026

Desktop app

Nogrammarpro.ai · read 20 Sep 2026

Integrations

The privacy policy identifies OpenAI's API as a third-party service used to process text.grammarpro.ai · read 8 Oct 2026

Intended users

The About page identifies students, professionals, non-native English speakers, writers, and bloggers as intended users.grammarpro.ai · read 8 Oct 2026

Languages

The homepage says it supports more than 30 languages, while the About page lists English, Spanish, French, German, Portuguese, Chinese, and Japanese.grammarpro.ai · read 8 Oct 2026

Limits

The homepage says free use is limited to 500 words per request and Pro to 5,000 words; pricing lists three daily free checks without an account and five when signed in.grammarpro.ai · read 8 Oct 2026

Mobile app

Nogrammarpro.ai · read 20 Sep 2026

Privacy

GrammarPro says it does not store submitted text after processing, but sends text to OpenAI's API and recommends not submitting sensitive personal information.grammarpro.ai · read 8 Oct 2026

Purpose

GrammarPro checks and corrects grammar, spelling, punctuation, and writing style with AI.grammarpro.ai · read 8 Oct 2026

Security

Its privacy policy says it uses reasonable security measures and that internet transmission is not completely secure.grammarpro.ai · read 8 Oct 2026

Style suggestions

Yesgrammarpro.ai · read 20 Sep 2026

Support

The About page provides [email protected] for questions or feedback and the privacy policy provides [email protected] for privacy questions.grammarpro.ai · read 8 Oct 2026

Supported environment

GrammarPro says it works in the browser on any device and requires no installation or download.grammarpro.ai · read 8 Oct 2026

Tone detection

Yesgrammarpro.ai · read 20 Sep 2026

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