Terms of Service

1. Acceptance of these terms

These Terms of Service (“Terms”) govern your access to and use of CruxPack (the “Service”), operated from Massachusetts, United States (“we,” “us,” or “our”). By creating an account or using the Service, you agree to be bound by these Terms and by our Privacy Policy. If you do not agree, do not use the Service.

2. Description of the service

CruxPack turns lecture files (such as PDF and PPTX) and pasted text into study notes, flashcards, practice problems, and cheat sheets, using Google’s Gemini AI. The flashcards are designed for active recall and can be exported to third-party tools such as Anki, where you can schedule your own reviews. We may add, change, or remove features at any time.

3. Accounts and your responsibilities

You sign in with Google OAuth. You are responsible for maintaining the security of the identity provider account you use to access the Service and for all activity that occurs under your account. You must provide accurate information, be old enough to use the Service (see our Privacy Policy regarding age), and notify us promptly of any unauthorized use.

4. Acceptable use

You agree not to:

• Upload or submit content you do not own or have the necessary rights and permissions to use, including other people’s confidential or copyrighted material.
• Use the Service to infringe intellectual property, privacy, or other rights.
• Scrape, crawl, reverse-engineer, or attempt to extract source code or data from the Service, except as permitted by law.
• Abuse, overload, disrupt, or interfere with the Service or its infrastructure, including by circumventing usage limits or security measures.
• Upload malware, or use the Service for unlawful, harmful, or fraudulent purposes.

5. AI-generated output

Study packs are generated by AI and may contain errors, omissions, or inaccuracies. They are study aids only and are not a substitute for the original source material or for professional, academic, medical, legal, or other expert advice. You are responsible for reviewing and verifying any output before relying on it. We make no guarantee that generated content is accurate, complete, or suitable for any particular purpose, including exams or coursework.

6. Subscriptions and billing

• Plans. The Service offers a free tier and a paid “Pro” subscription with higher limits and additional features.
• Payments. Paid subscriptions are billed through Stripe. By subscribing, you authorize recurring charges until you cancel.
• Fair use. Plans are subject to fair-use and usage limits — Pro includes a generous 100 study packs per month, which almost no one reaches. We may throttle or limit usage that is excessive or that degrades the Service for others.
• Cancellation. You may cancel at any time; cancellation takes effect at the end of the current billing period, and you retain Pro access until then.
• Refunds. Payments are non-refundable except where a refund is required by applicable law.

7. Promotional codes

We may offer promotional or invite codes that grant credits or access. Codes have no cash value, may expire, cannot be combined unless we say so, and may be modified or revoked if we believe they are being used in error, fraudulently, or contrary to their terms.

8. Intellectual property

Your content. You retain ownership of the content you upload or paste and of the study packs generated from it. You grant us a limited license to host, process, and transmit your content (including to Google’s Gemini API) as needed to operate and provide the Service.

Our content. The Service itself — including its software, design, branding, and the CruxPack name and logo — is owned by us or our licensors and is protected by intellectual-property laws. We grant you a limited, non-exclusive, non-transferable, revocable license to use the Service for your personal study, subject to these Terms.

9. Copyright and DMCA takedowns

You may upload only material you own or have the necessary rights and permissions to use. Lecture slides, textbooks, problem sets, and similar materials are often owned by professors, universities, or publishers. Uploading such material without permission may infringe their copyright, and you are solely responsible for the content you submit. Do not upload copyrighted material you are not authorized to use.

We respond to clear notices of alleged copyright infringement consistent with the U.S. Digital Millennium Copyright Act (DMCA) and similar laws. If you believe content on the Service infringes your copyright, send a written notice to dmca@cruxpack.io (CruxPack, Massachusetts, United States) that includes:

• Identification of the copyrighted work you claim has been infringed.
• Identification of the material you claim is infringing and enough information for us to locate it (such as the account or study pack involved).
• Your contact information (name, address, and email).
• A statement that you have a good-faith belief the use is not authorized by the copyright owner, its agent, or the law.
• A statement, under penalty of perjury, that the information in your notice is accurate and that you are the copyright owner or authorized to act on the owner’s behalf.
• Your physical or electronic signature.

We may remove or disable access to allegedly infringing content and, in appropriate cases, terminate the accounts of users who repeatedly infringe. If you believe your content was removed in error, you may send us a counter-notice at the same address.

10. Termination

You may stop using the Service and delete your account at any time. We may suspend or terminate your access if you violate these Terms, if required by law, or if we discontinue the Service. Upon termination, your right to use the Service ends, and we may delete your content in accordance with our Privacy Policy. Sections that by their nature should survive termination will survive.

11. Disclaimers of warranty

The Service is provided “as is” and “as available,” without warranties of any kind, whether express or implied, including implied warranties of merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the Service will be uninterrupted, error-free, secure, or that any output will be accurate or reliable.

12. Limitation of liability

To the maximum extent permitted by law, we will not be liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of data, profits, or goodwill, arising out of or related to your use of the Service. Our total liability for any claim relating to the Service will not exceed the greater of the amount you paid us in the twelve months before the claim, or USD 50. Some jurisdictions do not allow certain limitations, so some of these may not apply to you.

13. Governing law

These Terms are governed by the laws of Massachusetts, United States, without regard to its conflict-of-laws rules. You agree to the exclusive jurisdiction of the courts located in Massachusetts, United States for any dispute that is not subject to small-claims resolution, to the extent permitted by law.

14. Changes to these terms

By agreeing to these Terms, you agree to be bound by future revisions we make to them as well. We may update these Terms from time to time; when we do, we will revise the “Last updated” date above and, for material changes, take reasonable steps to notify you (for example, by email or an in-app notice). Your continued use of the Service after a revision takes effect — with no further action required on your part — means you accept it. If you do not agree to a revision, your option is to stop using the Service.

15. Contact us

Questions about these Terms? Contact us at support@cruxpack.io (CruxPack, Massachusetts, United States).