Terms of Service

1. Acceptance of Terms

By accessing or using The Grammar Index™ ("the Service"), you agree to be bound by these Terms of Service. If you do not agree to these terms, please do not use the Service.

2. Description of Service

The Grammar Index is a grammar reference application available as a web application, a Windows desktop application, and native mobile applications for Android and iOS. The Service provides grammar definitions, examples, and educational content.

3. License and Access

Free Tier

The free tier provides access to a limited selection of grammar entries without registration. No license key is required.

Paid Tiers

Paid licenses grant access to all grammar content. Upon purchase, you receive a license key that can be activated on a limited number of devices as specified by your tier:

• Individual: 2 devices (1 seat)
• Team: 2 devices per seat (10 or 30 seats)
• Institution: 2 devices per seat (100, 500, or 1,000 seats)
• Gift / Sponsorship: 2 devices per seat (30, 500, or 10,000 seats)

4. Payment and Refunds

All purchases are one-time payments processed through Stripe. Prices are in US dollars. Due to the digital nature of the product and instant delivery of license keys, refunds are handled on a case-by-case basis. Please contact support@grammarindex.com for refund requests.

5. License Restrictions

You may not:

• Share, sell, or redistribute your license key publicly
• Attempt to circumvent device activation limits
• Reverse engineer, decompile, or disassemble the application
• Use the Service for any unlawful purpose

6. Intellectual Property

All content within The Grammar Index, including definitions, examples, design, and code, is the intellectual property of The Grammar Index. Your license grants you a non-exclusive, non-transferable right to use the Service for personal or institutional educational purposes.

7. Availability

We strive to maintain the Service's availability but do not guarantee uninterrupted access. The mobile applications function offline once activated. The web application requires an internet connection.

8. Limitation of Liability

The Grammar Index is provided "as is" without warranties of any kind. We shall not be liable for any indirect, incidental, or consequential damages arising from your use of the Service.

9. Termination

We reserve the right to deactivate license keys that are found to be in violation of these terms. Lifetime licenses remain valid as long as the terms are respected.

10. Changes to Terms

We may update these Terms of Service from time to time. Continued use of the Service after changes constitutes acceptance of the updated terms.

11. Contact

For questions about these Terms, please contact us at support@grammarindex.com or via our Contact page.