Legal

Terms of Use

Effective date: November 5, 2026 · AppLabs, LLC

These Terms govern your use of the PromptShield application (“the App”) provided by AppLabs, LLC, a Delaware limited liability company (“we”, “us”). By installing or using PromptShield you agree to these Terms. If you don't agree, don't use the App.

1. Licence

We grant you a limited, non-exclusive, non-transferable, revocable licence to install and use PromptShield on devices you own or control, for personal use or for internal use within your organisation.

2. Free, with no ads

PromptShield is free. It contains no advertising and no in-app purchases. We may change, suspend or discontinue the App at any time.

3. What PromptShield's results mean

PromptShield is a heuristic tool. It looks for known patterns of prompt injection in the parts of a file it can inspect, and reports what it found and what it couldn't inspect. It does not and cannot detect every prompt injection, and it can report findings in harmless files.

A result of “No threats detected”, a low risk score or complete coverage does NOT mean that a file is safe, clean, trustworthy or free of instructions aimed at AI systems. The risk score is a summary of findings, not a probability. Results can be incomplete or wrong because of the file's format, size limits, text-recognition errors, new or unusual attack techniques, languages other than English, or defects in the App.

PromptShield's results are information to help you decide. They are not security, legal or professional advice, and the App is not a substitute for your own review, for professional security assessment, or for safeguards in the AI tools you use.

4. Your responsibility

You are solely responsible for deciding which files to open, share or give to any AI system, for how you configure and supervise AI tools, and for any action you or an AI system take based on a file or on PromptShield's results. Do not rely on PromptShield as your only protection. Keep appropriate safeguards in place, such as limiting what AI tools can access and reviewing their actions before they take effect.

5. Acceptable use

Scan only files you are allowed to access. Don't use PromptShield to break the law or infringe others' rights, and don't use it to develop or test attacks against AI systems you don't own or aren't authorised to test.

6. Intellectual property

PromptShield's code, rules, design and branding belong to AppLabs, LLC. You may not copy, modify, distribute, reverse-engineer or create derivative works of the App except as the law allows. Third-party components are used under their own licences.

7. Disclaimer of warranties

PROMPTSHIELD IS PROVIDED “AS IS” AND “AS AVAILABLE”, WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY AND NON-INFRINGEMENT. WE DON'T WARRANT THAT THE APP WILL DETECT ANY OR ALL PROMPT INJECTIONS OR OTHER MALICIOUS CONTENT, THAT ITS RESULTS ARE COMPLETE OR ACCURATE, OR THAT IT WILL BE ERROR-FREE OR UNINTERRUPTED. YOU USE THE APP AND RELY ON ITS RESULTS AT YOUR OWN RISK.

8. Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, APPLABS, LLC SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY OR PUNITIVE DAMAGES, OR FOR ANY LOSS OF DATA, PROFITS, BUSINESS OR GOODWILL, ARISING FROM OR RELATED TO YOUR USE OF OR INABILITY TO USE PROMPTSHIELD — INCLUDING ANY RELIANCE ON ITS RESULTS, ANY PROMPT INJECTION OR OTHER CONTENT IT DID NOT DETECT, AND ANY ACTION TAKEN BY YOU, BY OTHERS OR BY AN AI SYSTEM — EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. BECAUSE THE APP IS FREE, OUR TOTAL LIABILITY FOR ANY CLAIM SHALL NOT EXCEED FIFTY U.S. DOLLARS (US$50). Some jurisdictions don't allow certain limitations, so some of these may not apply to you.

9. Indemnity

To the extent permitted by law, you agree to indemnify and hold harmless AppLabs, LLC from claims arising from your misuse of the App or your breach of these Terms.

10. App stores

These Terms are between you and AppLabs, LLC, not Apple or Google. Apple and Google have no obligation to provide maintenance or support for the App and are not responsible for addressing claims relating to it. If you downloaded the App from the App Store, Apple and its subsidiaries are third-party beneficiaries of these Terms and may enforce them. Your use must also follow the store's own terms.

11. Governing law

These Terms are governed by the laws of the State of Delaware, without regard to conflict-of-law rules. Disputes will be resolved in the state or federal courts located in Delaware.

12. Changes and termination

We may update these Terms; the current version is always in the App. Continued use after an update means you accept it. We may end your licence if you breach these Terms; sections 3, 4 and 6–11 survive.

Contact

Questions about these Terms: mail@applabs.llc

AppLabs, LLC · Newark, Delaware, USA