Terms of Use

Effective date: 20 September 2026
Applies to: this build of Private Browser AI for iOS 18 and later
Last updated: 20 September 2026

These Terms of Use (“Terms”) are a legally oriented description of how you may use this software. They are not a substitute for independent legal counsel and have not been reviewed by counsel. If you do not agree, do not use the app.

The Privacy Policy bundled with this build is incorporated by reference.

1. The product

Private Browser AI is a WKWebView browser for iPhone and iPad with an optional on-device assistant (Demo mode, Apple Foundation Models when available, and llama.cpp GGUF on a physical device). It is not Safari, not Tor, not a VPN service, and not a hosted AI chatbot.

There is no account. Features that need a network (loading websites, search, optional model download, optional cloud endpoint) use your device’s connectivity.

2. Eligibility

You must be able to enter a binding contract in your jurisdiction and be old enough to use a general-purpose web browser. If you use the app on behalf of an organization, you represent that you have authority to bind it.

The app requires iOS 18 or later. Some features need later OS versions or specific hardware (for example Apple Intelligence / Foundation Models). llama.cpp inference is linked for physical devices; Simulator builds cannot run GGUF.

3. License

The developer grants you a personal, non-exclusive, non-transferable, revocable license to install and use the app on Apple-branded devices you own or control, as permitted by the App Store or other distribution method you used.

You may not: reverse engineer except where the law allows; circumvent technical limits; rent, sublicense, or misrepresent the app as your own hosted service; or use private APIs.

Open-source components (including llama.cpp under MIT) remain under their own licenses. See Licenses in the app.

4. App Store licensed application (if downloaded from Apple)

If you obtain the app from the Apple App Store, these additional terms apply to the extent required by Apple:

• The license is limited to a non-transferable license to use the Licensed Application on any Apple-branded Products that you own or control and as permitted by the Usage Rules in the App Store Terms of Service.
• These Terms are between you and the developer, not Apple. Apple has no obligation to provide maintenance or support.
• In the event of a failure to conform to an applicable warranty (if any cannot be disclaimed), you may notify Apple, and Apple may refund the purchase price; to the maximum extent permitted by law, Apple has no other warranty obligation.
• Apple is not responsible for addressing claims relating to the Licensed Application, including product liability, legal or regulatory failure, consumer protection, or intellectual property infringement.
• You represent you are not located in a U.S. embargoed country and are not on a U.S. government prohibited-party list.
• Apple and Apple’s subsidiaries are third-party beneficiaries of these Terms and may enforce them.

5. Acceptable use

You agree to use the browser and assistant only for purposes that are legal in your jurisdiction. You will not use the app to:

• Probe, scan, or attack any system, network, or account you are not authorized to test
• Bypass CAPTCHAs, paywalls, DRM, authentication, or other site security (the app is designed not to do this)
• Distribute malware, steal credentials, or commit fraud
• Infringe intellectual property or privacy rights of others
• Generate or store illegal content
• Automate purchases, submissions, or “botting” of websites against their terms
• Misrepresent AI output as human professional advice

The agent requires you to preview and confirm tools. You are responsible for every confirmed action.

6. Web content and third parties

Pages you visit are not our content. Ads, cookies, trackers, accounts, and payments on those sites are between you and those sites. Search engines, Hugging Face, Kagi, Apple, llama.cpp model authors, and any OpenAI-compatible host you configure have their own terms. Review model licenses before download.

7. AI outputs

Assistant text may be inaccurate. Demo mode simulates an assistant and is not a real model. Local models have limited world knowledge. Page-grounded answers should be checked against the page. Outputs are not legal, medical, tax, or investment advice.

You own the prompts you type, to the extent the law allows. You are responsible for not pasting secrets into a cloud endpoint you enabled.

8. Privacy Mode, VPN, and security claims

You acknowledge:

• Private Mode reduces local persistence; it does not make you anonymous
• This app does not operate a VPN; Personal VPN is optional IKEv2 to a server you provide, and only if the Apple entitlement is present
• Tracker protection is limited WebKit rules, not a full-content blocker
• No software is “completely secure”

9. Your content and backups

You retain rights to bookmarks, notes, and files you create. Encrypted backup is a file you export; keep the passphrase safe. Lost passphrases cannot be recovered by us (there is no account reset).

You grant the developer no license to mine your browsing, because this build does not receive it.

10. Fees

The app may be free or paid through Apple. Optional third-party APIs, model downloads, and network usage may incur costs from those providers or your carrier. We do not bill cloud AI on our servers in this build.

11. Intellectual property

The name “Private Browser AI,” the Umbra crescent mark, UI, and original code are protected by applicable IP law. Apple, DuckDuckGo, Hugging Face, Qwen, Gemma, and other marks belong to their owners.

12. Disclaimers

TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE APP IS PROVIDED “AS IS” AND “AS AVAILABLE,” WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS, IMPLIED, OR STATUTORY, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT. WE DO NOT WARRANT THAT THE APP WILL BE ERROR-FREE, UNINTERRUPTED, OR FREE OF HARMFUL COMPONENTS, OR THAT AI OUTPUTS WILL BE CORRECT.

SOME JURISDICTIONS DO NOT ALLOW CERTAIN DISCLAIMERS. NOTHING HERE LIMITS NON-WAIVABLE CONSUMER RIGHTS (INCLUDING THOSE THAT MAY APPLY IN THE EEA, UK, OR AUSTRALIA).

13. Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE DEVELOPER WILL NOT BE LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY, OR PUNITIVE DAMAGES, OR ANY LOSS OF DATA, PROFITS, OR GOODWILL, ARISING FROM YOUR USE OF THE APP, EVEN IF ADVISED OF THE POSSIBILITY.

OUR TOTAL LIABILITY FOR CLAIMS RELATING TO THE APP WILL NOT EXCEED THE AMOUNT YOU PAID FOR THE APP IN THE TWELVE MONTHS BEFORE THE CLAIM (OR USD $10 IF YOU PAID NOTHING).

THESE LIMITS DO NOT APPLY TO LIABILITY THAT CANNOT BE LIMITED UNDER APPLICABLE LAW (FOR EXAMPLE DEATH OR PERSONAL INJURY CAUSED BY NEGLIGENCE WHERE SUCH LIMITS ARE FORBIDDEN, OR FRAUD).

14. Indemnity

If you use the app in a way that violates these Terms or third-party rights (including sites you attack or content you generate), you will defend and indemnify the developer against resulting claims, damages, and reasonable legal fees, to the extent permitted by law. This does not require you to indemnify us for our own willful misconduct.

15. Termination

You may stop using the app and delete it at any time. We may stop distributing the app or change features. Rights that by nature should survive (IP, disclaimers, liability limits) survive.

16. Changes

We may update these Terms in a later build. The copy bundled with the version you installed controls for that version. We cannot email notice because there is no account.

17. Governing law

Except where prohibited by consumer-protection law in your country of residence (in which case that law may apply), these Terms are governed by the laws of the State of California, USA, excluding conflict-of-law rules. Courts in Santa Clara County, California, will have jurisdiction, except that you may bring qualifying consumer claims in your home courts where the law requires.

If you are a consumer in the European Economic Area or the United Kingdom, you may have mandatory rights that override the venue and law above.

18. Miscellaneous

These Terms are the entire agreement for use of the app, together with the Privacy Policy and Apple’s App Store terms if applicable. If a provision is unenforceable, the rest remains. Failure to enforce is not a waiver. You may not assign the Terms without consent; we may assign them in a sale of the project. Headings are for convenience.

19. Contact

There is no in-app support account. When listed on the App Store, use that listing’s support link. For third-party sites and models, contact those providers.

If you have questions about what the software actually does, read the Privacy Policy and Settings → About. Those pages are written to match this build, not a marketing slogan.