Terms of Use

Effective Date: March 7, 2026

1. Agreement to Terms

These Terms of Use ("Terms") constitute a legally binding agreement between you ("you" or "user") and Vision Labs AI ("Company," "we," "us," or "our") governing your access to and use of our browser extensions, applications, and other online products and services (collectively, the "Services"), including TabStash and Herr AI.

By accessing or using our Services, you agree to be bound by these Terms. If you do not agree to these Terms, you must not access or use our Services.

2. Eligibility

You must be at least 16 years old to use our Services. By using our Services, you represent and warrant that you meet this age requirement and have the legal capacity to enter into these Terms.

3. Description of Services

3.1 TabStash

TabStash is a browser extension that helps users save, organize, and manage browser tabs. The extension processes tab information (titles, URLs, and page metadata) to provide automatic categorization using domain-based heuristic matching performed locally on your device. TabStash also offers optional integration with Notion for cross-device sync and backup.

3.2 Herr AI

Herr AI is a German language learning assistant that uses artificial intelligence to help users practice German through conversations, grammar corrections, and translations.

3.3 Service Limitations

You acknowledge that our Services:

  • May produce inaccurate, incomplete, or unexpected results, including incorrect tab categorization.
  • Should not be relied upon as the sole source for important decisions.
  • May have periods of unavailability for maintenance or updates.
  • May change or be discontinued at any time with reasonable notice.

4. Acceptable Use

You agree to use our Services only for lawful purposes and in accordance with these Terms. You agree NOT to:

  • Use the Services in any way that violates any applicable law or regulation.
  • Use the Services to transmit any advertising or promotional material without our prior written consent.
  • Impersonate or attempt to impersonate the Company, a Company employee, another user, or any other person or entity.
  • Engage in any conduct that restricts or inhibits anyone's use or enjoyment of the Services.
  • Attempt to gain unauthorized access to, interfere with, damage, or disrupt any parts of the Services, servers, or networks.
  • Use any robot, spider, or other automatic device to access the Services for any purpose without our express written permission.
  • Introduce any viruses, Trojan horses, worms, or other malicious or technologically harmful material.
  • Reverse engineer, decompile, disassemble, or otherwise attempt to discover the source code of the Services.
  • Remove, alter, or obscure any proprietary notices from the Services.
  • Resell, sublicense, or redistribute access to the Services without authorization.

5. Third-Party Services and Integrations

Our Services may integrate with or rely on third-party services. Your use of third-party services is at your own risk.

5.1 Notion Integration

If you choose to connect your Notion workspace:

  • You authorize us to access the Notion content you explicitly permit during the OAuth authorization flow.
  • You remain bound by Notion's terms of service.
  • You represent that you have the authority to grant such access.
  • You can revoke access at any time through the TabStash settings page or your Notion account settings.

5.2 Cloudflare Workers

Our serverless proxy runs on Cloudflare infrastructure and is subject to Cloudflare's terms of service. The proxy handles Notion OAuth authentication and API operations on your behalf.

5.3 Chrome Web Store

TabStash is distributed via the Chrome Web Store. Your use of the Chrome Web Store is subject to Google's Chrome Web Store Terms of Service. In the event of any conflict between these Terms and the Chrome Web Store Terms of Service, the Chrome Web Store Terms of Service shall prevail with respect to your use of the Chrome Web Store.

We are not responsible for the availability, accuracy, or functionality of third-party services.

6. Donations and Payments

TabStash is provided free of charge. We offer users the option to make voluntary donations to support continued development. Donations are processed by Lemon Squeezy, who acts as our merchant of record.

  • Donations are entirely voluntary and do not unlock additional features or functionality.
  • All donations are non-refundable except as required by applicable law.
  • Lemon Squeezy handles all payment processing, tax collection, and payment compliance. Your payment is subject to Lemon Squeezy's terms of service: https://www.lemonsqueezy.com/terms
  • We do not collect or store your payment information.

7. Intellectual Property Rights

7.1 Our Intellectual Property

The Services and their entire contents, features, and functionality (including but not limited to all information, software, text, displays, images, and the design, selection, and arrangement thereof) are owned by Vision Labs AI, its licensors, or other providers of such material and are protected by copyright, trademark, and other intellectual property or proprietary rights laws.

7.2 Your Content

You retain full ownership of any data you create or store through our Services, including your stashed tabs, sessions, categories, and archived tabs. By using our Services, you grant us a limited, non-exclusive, royalty-free license to process your data solely for the purpose of providing the Services to you.

7.3 Feedback

If you provide us with any feedback, suggestions, or ideas regarding the Services, you grant us a perpetual, irrevocable, worldwide, royalty-free license to use and incorporate such feedback for any purpose.

8. Data and Export

You may export your TabStash data at any time in JSON or CSV format. You may also delete all your data from the TabStash settings page. Uninstalling the extension removes all locally stored data. We encourage you to export your data regularly as a backup.

9. Disclaimer of Warranties

THE SERVICES ARE PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS, WITHOUT ANY WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED. TO THE FULLEST EXTENT PERMITTED BY LAW, WE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO:

  • IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
  • WARRANTIES THAT THE SERVICES WILL BE UNINTERRUPTED, TIMELY, SECURE, OR ERROR-FREE.
  • WARRANTIES REGARDING THE ACCURACY, RELIABILITY, OR COMPLETENESS OF ANY CONTENT OR INFORMATION PROVIDED THROUGH THE SERVICES.
  • WARRANTIES THAT AUTOMATED CATEGORIZATION WILL BE ACCURATE OR APPROPRIATE FOR YOUR NEEDS.

10. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL VISION LABS AI, ITS DIRECTORS, EMPLOYEES, PARTNERS, AGENTS, SUPPLIERS, OR AFFILIATES BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, INCLUDING WITHOUT LIMITATION:

  • LOSS OF PROFITS, DATA, USE, GOODWILL, OR OTHER INTANGIBLE LOSSES.
  • DAMAGES RESULTING FROM YOUR ACCESS TO OR USE OF OR INABILITY TO ACCESS OR USE THE SERVICES.
  • DAMAGES RESULTING FROM ANY CONDUCT OR CONTENT OF ANY THIRD PARTY ON THE SERVICES.
  • DAMAGES RESULTING FROM UNAUTHORIZED ACCESS, USE, OR ALTERATION OF YOUR TRANSMISSIONS OR CONTENT.
  • LOSS OF SAVED TABS, SESSIONS, OR OTHER DATA DUE TO BROWSER STORAGE LIMITATIONS, EXTENSION UPDATES, OR TECHNICAL ISSUES.

IN NO EVENT SHALL OUR TOTAL LIABILITY TO YOU FOR ALL CLAIMS EXCEED ONE HUNDRED EUROS (€100).

Note: Nothing in these Terms excludes or limits liability for death, personal injury caused by negligence, fraud, or any other liability that cannot be excluded or limited under applicable law, including mandatory provisions of EU consumer protection law.

11. Indemnification

You agree to defend, indemnify, and hold harmless Vision Labs AI, its directors, employees, partners, agents, suppliers, and affiliates from and against any claims, damages, obligations, losses, liabilities, costs, or expenses (including attorneys' fees) arising from:

  • Your use of the Services.
  • Your violation of these Terms.
  • Your violation of any third-party right, including intellectual property or privacy rights.

12. Termination

We may terminate or suspend your access to the Services if you breach these Terms. Upon termination:

  • Your right to use the Services will immediately cease.
  • You should export any data you wish to retain before uninstalling.
  • All provisions of these Terms which by their nature should survive termination shall survive, including ownership provisions, warranty disclaimers, indemnity, and limitations of liability.

13. Modifications to Services and Terms

We reserve the right to:

  • Modify, suspend, or discontinue the Services (or any part thereof) at any time with reasonable notice.
  • Update these Terms at any time by posting the revised Terms on our website.

Material changes to these Terms will be communicated via notice within the Services or on our website. Your continued use of the Services after any changes constitutes acceptance of the new Terms.

14. Governing Law and Dispute Resolution

These Terms shall be governed by and construed in accordance with the laws of the Federal Republic of Germany, without regard to its conflict of law provisions. For consumers residing in the European Union, mandatory consumer protection provisions of your country of residence shall also apply where they provide greater protection.

Any dispute arising out of or relating to these Terms or the Services shall first be attempted to be resolved through good-faith negotiation. If the dispute cannot be resolved through negotiation within thirty (30) days, either party may pursue resolution through the courts of Berlin, Germany, unless applicable law requires a different jurisdiction for consumer disputes.

The European Commission provides an online dispute resolution platform at https://ec.europa.eu/consumers/odr. We are not obligated to participate in dispute resolution proceedings before a consumer arbitration board, but we will consider doing so on a case-by-case basis.

15. Severability

If any provision of these Terms is held to be invalid, illegal, or unenforceable, the remaining provisions shall continue in full force and effect. The invalid provision shall be modified to the minimum extent necessary to make it valid and enforceable while preserving its intent.

16. Entire Agreement

These Terms, together with our Privacy Policy, constitute the entire agreement between you and Vision Labs AI regarding the Services and supersede all prior and contemporaneous agreements, proposals, or representations, written or oral, concerning the subject matter.

17. Contact Us

If you have any questions about these Terms of Use, please contact us at:

Vision Labs AI

Email: visionlabsai16@gmail.com