Privacy Policy

1. Introduction

The Grammar Index ("we", "our", "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our website, web application, and mobile applications.

2. Information We Collect

Account Information

When you purchase a license, we collect your name and email address to associate with your license key and to send you purchase confirmations.

Payment Information

Payment processing is handled entirely by Stripe. We do not collect, store, or have access to your credit card or bank account details.

Device Information

When you activate The Grammar Index on a device, we generate a device fingerprint (a hashed identifier based on basic device properties) to manage device activations. This fingerprint cannot be used to identify you personally.

Usage Data

We do not track which grammar entries you view, search for, or how you use the application. The Grammar Index works offline — your usage data stays on your device.

3. How We Use Your Information

• To process your purchase and deliver your license key
• To manage device activations and enforce license terms
• To respond to your support enquiries
• To send purchase-related communications

4. Data Sharing

We do not sell, trade, or otherwise transfer your personal information to third parties, except:

• Stripe: For payment processing
• Legal requirements: If required by law or to protect our rights

5. Data Security

We implement appropriate technical and organisational measures to protect your personal data, including encryption in transit (HTTPS) and secure storage practices.

6. Data Retention

We retain your account information for as long as your license is active. You may request deletion of your data by contacting us at support@grammarindex.com.

7. Your Rights

You have the right to access, correct, or delete your personal data. To exercise these rights, please contact us at support@grammarindex.com.

8. Children's Privacy

The Grammar Index is intended for use in educational settings. We do not knowingly collect personal information from children under 13 without parental consent. Institutional purchases are made by authorised school administrators.

9. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new policy on this page with an updated effective date.

10. Contact Us

If you have questions about this Privacy Policy, please contact us at support@grammarindex.com or via our Contact page.