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Terms of Service

Effective date: April 5, 2026  ·  Last updated: April 5, 2026

These Terms of Service (“Terms”) govern your use of IndexSprint, operated at indexsprint.com (the “Service”). By accessing or using the Service, you agree to be bound by these Terms. If you do not agree, do not use the Service.

1. Description of Service

IndexSprint is a web application that converts a book's table of contents into a structured reading plan. The Service includes a free tier (ToC parsing, editing, and Markdown export) and a paid Premium tier (plan saving, progress tracking, focus timer, AI-generated study prompts, and spaced repetition scheduling).

2. Eligibility

You must be at least 13 years old to use the Service. If you are under 18, you represent that you have your parent or guardian's permission to use the Service. By creating an account, you represent that the information you provide is accurate and complete.

3. Accounts

3.1 Account creation

You may create an account using email/password, Google OAuth, or GitHub OAuth. You are responsible for maintaining the security of your account credentials. You must notify us immediately if you suspect unauthorized access to your account.

3.2 Account termination

You may delete your account at any time from your account settings. We may suspend or terminate your account if you violate these Terms, engage in abusive behavior, or use the Service in a way that threatens its stability or security.

4. Free tier

The free tier of IndexSprint allows you to:

  • Search for books by title and retrieve table of contents data.
  • Paste or scan a table of contents for parsing.
  • Edit the generated reading plan (reorder, rename, nest items).
  • Download the reading plan as a Markdown (.md) file.

The free tier does not require account creation. No credit card is required. The free tier is subject to rate limits to prevent abuse.

5. Premium subscription

5.1 Pricing and billing

Premium is available as a monthly or annual subscription. Prices are listed on our Pricing page and may change with 30 days' notice to existing subscribers. Payment is processed by Dodo Payments, our Merchant of Record. By subscribing, you also agree to Dodo Payments' terms of service.

5.2 Free trials

We may offer free trial periods at our discretion. At the end of a trial, your subscription will automatically convert to a paid subscription unless you cancel before the trial ends.

5.3 Cancellation

You may cancel your subscription at any time from your account settings. Cancellation takes effect at the end of your current billing period. You retain access to Premium features until the end of the period you have already paid for. We do not offer prorated refunds for partial billing periods.

5.4 Refunds

Refund requests are handled by Dodo Payments in accordance with their refund policy. If you believe you have been charged in error, contact us at support@indexsprint.com within 14 days of the charge.

6. Acceptable use

You agree NOT to:

  • Use the Service to submit content that is illegal, harmful, abusive, harassing, or otherwise objectionable.
  • Attempt to bypass rate limits, abuse prevention mechanisms, or security controls.
  • Use automated scripts, bots, or scrapers to access the Service without our written permission.
  • Submit deliberately malformed or adversarial input designed to trigger excessive AI processing costs.
  • Reverse-engineer, decompile, or attempt to extract the source code of the Service.
  • Use the Service to infringe on the intellectual property rights of others.
  • Resell, redistribute, or commercially exploit the Service or its outputs without our permission.
  • Share your account credentials with others or allow multiple people to use a single account.

7. Intellectual property

7.1 Your content

You retain ownership of the content you submit to the Service, including pasted table of contents text, reflections, and reading plan customizations. By submitting content, you grant us a limited, non-exclusive license to process, store, and display it solely to provide the Service to you.

7.2 Cached ToC data

Table of contents data parsed by the Service may be cached to improve performance for other users. Cached data consists only of structural information (chapter titles, hierarchy, and page numbers) and does not include the substantive content of any book. If you are a copyright holder and believe cached data infringes your rights, please see our DMCA process in the Privacy Policy.

7.3 AI-generated content

Retrieval prompts generated by the AI feature are created for your personal study use. You may use, modify, and share these prompts freely. We do not claim ownership of AI-generated content. However, AI-generated content is provided “as is” and may contain inaccuracies.

7.4 Our content

The Service, including its design, code, branding, and documentation, is owned by IndexSprint and protected by applicable intellectual property laws. You may not copy, modify, or distribute any part of the Service without our written permission.

8. Third-party services

The Service integrates with third-party providers. Your use of these integrations is subject to their respective terms:

  • Open Library API: Book metadata and table of contents data are sourced from Open Library (openlibrary.org), a project of the Internet Archive.
  • Google Books API: Additional book metadata may be sourced from Google Books.
  • Anthropic Claude API: AI-generated retrieval prompts are powered by Anthropic's Claude. Your reflection text is sent to Anthropic for processing.
  • Dodo Payments: Payment processing and subscription management.
  • Google OAuth: If you choose to sign in with Google, your authentication is handled by Google's OAuth service.
  • GitHub OAuth: If you choose to sign in with GitHub, your authentication is handled by GitHub's OAuth service.

9. Disclaimers

The Service is provided “as is” and “as available” without warranties of any kind, express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, and non-infringement.

We do not guarantee that:

  • The Service will be available at all times without interruption.
  • The ToC parser will correctly parse every table of contents format.
  • AI-generated retrieval prompts will be accurate, complete, or suitable for any particular exam or assessment.
  • Book search results will include every published book.

10. Limitation of liability

To the maximum extent permitted by applicable law, IndexSprint and its operators shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including but not limited to loss of data, loss of profits, or business interruption, arising out of or in connection with your use of the Service.

Our total liability for any claim arising from the Service shall not exceed the amount you paid us in the 12 months preceding the claim, or $100, whichever is greater.

11. Indemnification

You agree to indemnify and hold harmless IndexSprint and its operators from any claims, damages, losses, or expenses (including reasonable legal fees) arising from your use of the Service, your violation of these Terms, or your infringement of any third-party rights.

12. Changes to these Terms

We may update these Terms from time to time. We will notify you of material changes by posting the updated Terms on this page and updating the “Last updated” date. For significant changes affecting your rights or payment obligations, we will provide 30 days' notice by email to registered users. Your continued use of the Service after changes take effect constitutes acceptance of the revised Terms.

13. Governing law

These Terms are governed by and construed in accordance with the laws of India. Any disputes arising from these Terms or the Service shall be resolved in the courts of competent jurisdiction in India.

14. Severability

If any provision of these Terms is found to be unenforceable, the remaining provisions shall continue in full force and effect.

15. Entire agreement

These Terms, together with the Privacy Policy, constitute the entire agreement between you and IndexSprint regarding the Service and supersede any prior agreements.

16. Contact us

If you have questions about these Terms, contact us at: