Legal

Privacy policy

Last updated: 18 May 2026

GrammarBot (“we”, “us”, “our”) operates the website at grammarbot.app. This privacy policy explains what data we collect, how we use it, and your rights regarding that data.

1. What we collect

1.1 Text you analyze

All readability, statistics, vocabulary, tone, and SEO analyses run entirely in your browser. Your text never leaves your device and is never sent to our servers for these computations.

When you use grammar checking (an optional feature), text is sent to the LanguageTool API for processing. LanguageTool’s privacy policy applies to that data.

1.2 Anonymous usage analytics

We collect anonymous information about how the site is used:

  • Pages visited and time spent
  • Browser type, OS, and device class
  • Approximate location (country-level, derived from IP)
  • Referrer URL (which site sent you to us)
  • Click events on buttons, tools, and links

We never log the content of text you analyze. We collect only metadata like character count and word count, in aggregate.

1.3 Account data (if you create an account)

If you sign up for an account, we collect:

  • Email address (required)
  • Full name (optional)
  • OAuth profile info from Google (if you sign in with Google)
  • Analyses you choose to save (text content + computed scores)

1.4 Newsletter

If you subscribe to our newsletter, we store your email address and subscription source. You can unsubscribe via any newsletter email.

2. How we use data

  • To provide and improve the service
  • To authenticate you and store your saved analyses
  • To send newsletter emails (only if you subscribed)
  • To analyze usage patterns and prioritize features
  • To debug and fix issues

We do not sell, rent, or share your personal data with third parties for advertising or marketing.

3. Third-party services

The following services process data on our behalf:

  • Vercel — hosts the website. May process IP addresses for security and routing.
  • Supabase — stores user accounts, saved analyses, and newsletter subscribers. Hosted in EU.
  • Google Analytics (if enabled) — anonymous usage statistics.
  • Google AdSense (if enabled) — serves contextual ads. AdSense may set cookies and process anonymized signals.
  • LanguageTool — optional grammar checking. Their privacy policy applies to text submitted for grammar analysis.

4. Cookies

We use cookies for:

  • Authentication — keeping you signed in (Supabase session cookies)
  • Analytics — measuring traffic (anonymous)
  • Advertising — Google AdSense personalization (you can opt out below)

5. Your rights (GDPR / CCPA)

You have the right to:

  • Access the personal data we hold about you
  • Correct inaccurate data
  • Delete your account and associated data
  • Export your data in a portable format
  • Object to processing for direct marketing
  • Withdraw consent at any time

To exercise these rights, email info@grammarbot.app with the subject “Privacy request”. We respond within 30 days.

6. Data retention

  • Account data — retained while your account is active; deleted within 30 days of account deletion
  • Saved analyses — retained while your account is active; deletable individually any time
  • Anonymous usage data — retained up to 26 months
  • Newsletter subscriptions — retained until you unsubscribe

7. Children

GrammarBot is not directed at children under 13. We do not knowingly collect personal data from children under 13. If you believe a child has provided us with personal data, contact us and we will delete it.

8. Changes to this policy

We may update this privacy policy from time to time. Material changes will be announced via the site or by email to registered users. The “Last updated” date at the top reflects the most recent revision.

9. Contact

For any privacy-related questions, email info@grammarbot.app.