Revision History Terms of Service

These Terms of Service (these "Terms") govern access to and use of the website located at www.revisionhistory.com (the "Site"), the Revision History Chrome browser extension for educators (the "Extension") and related services provided by TabWrite, LLC, a Delaware limited liability company operating as Revision History ("TabWrite", "we", "us" or "our"). The Site, the Extension and related services are referred to collectively as the "Service."

By accessing or using the Service, you agree to these Terms and to our Privacy Policy (the "Privacy Policy"). If you do not agree, do not use the Service. If you are using the Service on behalf of a school, school district or other organization, you represent that you are authorized to bind that organization to these Terms, and "you" refers to that organization.

1. The Service

The Extension gives educators visibility into the writing process behind student documents in Google Docs and Google Slides, including revision playback, writing analytics, copy/paste detection and unusual writing pattern alerts. The Extension analyzes documents locally within your browser. TabWrite does not collect, store, transmit or have access to student writing content, document contents or document metadata through the Extension, as further described in our Privacy Policy.

2. Eligibility; Accounts

The Service is intended for teachers, school administrators and other adults. You must be at least 18 years old to create an account or purchase a subscription. When you create an account, you agree to provide accurate and complete information and to keep it current. You are responsible for maintaining the confidentiality of your account credentials and for all activity that occurs under your account. Notify us promptly at info@revisionhistory.com of any unauthorized use of your account.

3. Individual Subscriptions: Free Tier and Plus

Our free tier allows you to analyze a limited number of documents per month. Plus subscriptions provide unlimited document analysis. We offer monthly and annual subscription plans. Pricing is subject to change and is displayed within the Extension at the time of purchase; price changes will not take effect until your next renewal.

Billing and renewal. Billing occurs at the beginning of each subscription period. Subscriptions renew automatically at the end of each subscription period unless cancelled before renewal. Payments are processed by our third-party payment processor, Stripe; TabWrite does not have access to your payment card details.

Cancellation. To update or cancel your subscription or for any account questions, email info@revisionhistory.com. There are no cancellation fees. If you cancel, you will retain access to Plus features until the end of your current billing period. No partial refunds are provided for unused portions of a billing period.

Refunds. If you are unsatisfied with your Plus subscription, contact info@revisionhistory.com to request a refund. Refund requests are evaluated on a case-by-case basis.

4. Institutional Orders

Institutional licenses, bulk pricing and educational discounts are available; contact info@revisionhistory.com. This Section 4 applies when a school, school district or other organization (an "Institutional Customer") purchases subscriptions under an order form, quote or similar ordering document that references these Terms (an "Order Form").

Incorporated terms. Each Order Form incorporates these Terms and, if Byline is ordered, the Byline Terms of Service and TabWrite's Student Data Privacy Agreement ("DPA") identified in the Order Form. Execution of an Order Form that incorporates the DPA constitutes execution of the DPA. If the Institutional Customer and TabWrite have entered into a separately negotiated signed agreement, that agreement controls over these Terms and any conflicting Order Form terms. With respect to student data, the DPA controls as stated in the DPA.

Fees; invoicing. The Institutional Customer will pay the fees stated in the Order Form. Unless the Order Form states otherwise, fees are invoiced annually in advance and are due net 30 from the invoice date. Except as expressly stated, payment obligations are non-cancelable and fees are non-refundable. Fees exclude taxes and similar charges; the Institutional Customer is responsible for all such amounts except taxes on TabWrite's income. If an amount is 30 days overdue and the Institutional Customer has received at least 10 days' prior notice, TabWrite may suspend the Service until the account is current.

Subscription term. Each institutional subscription runs for the term stated in the Order Form. Either party may terminate an Order Form upon 30 days' written notice of a material breach by the other party that is not cured within the 30-day period.

Authorized users. The Institutional Customer is responsible for its authorized users' compliance with these Terms, for determining which teachers, staff and (for Byline) students may use the Service and for maintaining the confidentiality of credentials under its control.

Warranties. TabWrite warrants to each Institutional Customer that it will perform the Service in a professional manner and will maintain the safeguards described in the DPA, where applicable. The Institutional Customer warrants that it has the authority to disclose student data to TabWrite, where applicable, and that its use of the Service will comply with applicable law and its own policies.

Indemnification. TabWrite will defend and indemnify the Institutional Customer from third-party claims to the extent arising from TabWrite's material breach of the DPA or violation of applicable privacy laws in its processing of student data. The Institutional Customer will defend and indemnify TabWrite from third-party claims to the extent arising from the Institutional Customer's unlawful disclosure of student data or use of the Service in violation of applicable law or these Terms, in each case only to the extent the Institutional Customer may lawfully agree to indemnify.

Limitation of liability. For Institutional Customers, in place of the cap in Section 11, each party's total aggregate liability arising out of or relating to the Service will not exceed the amounts paid or payable by the Institutional Customer to TabWrite in the 12 months before the event giving rise to the claim, except that this cap does not apply to TabWrite's misappropriation of student data or a party's indemnification obligations under this Section 4. Neither party will be liable for indirect, incidental, special, consequential or punitive damages.

Public institutions. If the Institutional Customer is a public school district or other public entity that is prohibited by applicable law from agreeing to the governing law or venue in Section 15, the Order Form will instead be governed by the laws of the state in which the Institutional Customer is located and Section 15 is deemed modified accordingly. A public entity's indemnification and similar obligations apply only to the extent permitted by applicable law.

An individual subscription is for your personal use and may not be shared with others unless specifically permitted under an institutional license.

5. License and Restrictions

Subject to these Terms, TabWrite grants you a limited, non-exclusive, non-transferable, revocable license to access and use the Service for your own educational and professional purposes. You will not (and will not permit anyone else to):

• copy, modify, distribute, sell, sublicense or create derivative works of the Service;
• reverse engineer, decompile or otherwise attempt to derive the source code of the Service, except to the extent this restriction is prohibited by law;
• access or use the Service to build a competing product or service;
• circumvent or attempt to circumvent any usage limits, security measures or technical protections of the Service;
• use automated means to access or scrape the Service; or
• use the Service in violation of applicable law, these Terms or the terms of any third-party platform (including Google) through which the Service operates.

6. Responsible Use of Writing Analytics

The Service provides indicators and analytics designed to support educator judgment. It does not determine whether a student engaged in plagiarism, unauthorized AI use or other misconduct. You are solely responsible for how you interpret and act on information provided by the Service, including compliance with your school's policies and applicable law.

7. Intellectual Property; Feedback

TabWrite and its licensors own all right, title and interest in and to the Service, including all related software, algorithms, models, documentation and improvements. Except for the limited license granted in these Terms, no rights in the Service are granted to you. If you provide feedback or suggestions about the Service, TabWrite may use them without restriction or obligation to you.

8. Privacy

Our Privacy Policy describes the limited information we collect through the Site and the Extension, how we use it and the choices available to you. By using the Service, you acknowledge the Privacy Policy.

9. Third-Party Services and Links

The Service operates with third-party platforms such as Google Docs, Google Slides and the Chrome Web Store, which are governed by their own terms and policies. The Service may also contain links to third-party websites or services that TabWrite does not own or control. TabWrite is not responsible for the content, privacy policies or practices of any third-party website or service, and you access them at your own risk. We encourage you to review the terms and privacy policies of any third-party website or service you visit.

10. Disclaimers

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE." TO THE FULLEST EXTENT PERMITTED BY LAW, TABWRITE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. We strive to maintain consistent service availability but do not guarantee that the Service will be uninterrupted, error-free or secure. We reserve the right to modify features of the Service with reasonable notice.

While we strive to provide accurate and reliable information, we do not guarantee the accuracy, completeness or timeliness of information provided by the Service. Information provided by the Service, including document revision history and writing analytics, should not be treated as definitive evidence for legal, academic or disciplinary proceedings. You should verify any critical information through other means before taking action based on information provided by the Service.

11. Limitation of Liability

TO THE FULLEST EXTENT PERMITTED BY LAW: (A) TABWRITE WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES, OR FOR ANY LOSS OF PROFITS, DATA OR GOODWILL, ARISING OUT OF OR RELATING TO THE SERVICE OR THESE TERMS; AND (B) TABWRITE'S TOTAL AGGREGATE LIABILITY ARISING OUT OF OR RELATING TO THE SERVICE OR THESE TERMS WILL NOT EXCEED THE GREATER OF THE AMOUNTS YOU PAID TO TABWRITE FOR THE SERVICE IN THE 12 MONTHS BEFORE THE EVENT GIVING RISE TO THE CLAIM OR $100. Some jurisdictions do not allow certain limitations of liability, so some of these limitations may not apply to you. For Institutional Customers, the liability cap in Section 4 applies in place of the cap in this Section 11, and any separately negotiated signed agreement controls.

12. Indemnification

You will defend and indemnify TabWrite from third-party claims to the extent arising from your violation of these Terms or applicable law or your misuse of the Service. This section does not apply to consumers where prohibited by law and does not apply to Institutional Customers, whose indemnification obligations are stated in Section 4 or in a separately negotiated signed agreement.

13. Suspension and Termination

You may stop using the Service at any time. We may suspend or terminate your access to the Service if you materially breach these Terms, if required by law or if we discontinue the Service. Upon termination, the licenses granted to you under these Terms end. Sections that by their nature should survive termination (including Sections 7 and 10 through 16) will survive.

14. Changes to These Terms

We may modify these Terms from time to time. If a revision is material, we will provide at least 30 days' notice via email to registered users before the new terms take effect and will also post notice of material changes within the Extension and on the Site. By continuing to use the Service after revisions become effective, you agree to the revised Terms. If you do not agree to the revised Terms, stop using the Service.

15. Governing Law; Venue

These Terms are governed by the laws of the State of Delaware, without regard to its conflict of laws principles. Any dispute arising out of or relating to these Terms or the Service that is not resolved informally will be brought exclusively in the state or federal courts located in Delaware, and the parties consent to personal jurisdiction and venue there. Nothing in this section limits either party's right to seek relief in small claims court or limits rights you may have under the mandatory consumer protection laws of your state of residence.

16. Miscellaneous

These Terms, together with the Privacy Policy and any signed agreement described in Section 4, constitute the entire agreement between you and TabWrite regarding the Service and supersede any prior agreements regarding the Service. Our failure to enforce any right or provision of these Terms is not a waiver of that right or provision. If any provision of these Terms is held invalid or unenforceable, the remaining provisions will remain in effect. You may not assign these Terms without our consent; we may assign these Terms in connection with a merger, acquisition or sale of assets.

Contact Us

If you have any questions about these Terms, contact us at info@revisionhistory.com.