These Terms of Service govern your use of the Purus browser application and any related services. By downloading or using Purus, you agree to these terms.
1. Acceptance of Terms
By downloading, installing, or using Purus, you agree to be bound by these Terms of Service and our Privacy Policy. If you do not agree to these terms, do not use the app.
2. Description of Service
Purus is a content-filtering web browser for iOS. The app uses multiple filtering layers — including domain blocking, DNS-level filtering, keyword filtering, and safe search enforcement — to reduce exposure to explicit content, advertisements, and unsafe searches. All filtering occurs on your device.
Purus may request the following device permissions to support optional features: microphone and speech recognition access (for voice search, processed entirely on-device), and Photos library access (to save images you choose to download). These features are optional and the app remains fully functional without granting these permissions.
3. No Guarantee of Complete Filtering
PURUS DOES NOT GUARANTEE COMPLETE FILTERING OF ALL EXPLICIT, HARMFUL, OR INAPPROPRIATE CONTENT. While Purus uses multiple layers of filtering technology, no content filter is perfect. Some explicit or inappropriate content may not be blocked. Purus is not responsible for any content that is not filtered by the app.
Purus is designed to significantly reduce exposure to explicit content but should not be relied upon as the sole means of content protection, particularly for minors. Parents and guardians remain responsible for supervising minors' use of this app and any device on which it is installed.
4. Limitation of Liability
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, PURUS AND ITS OWNERS, OFFICERS, EMPLOYEES, AND AGENTS SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, INCLUDING BUT NOT LIMITED TO DAMAGES ARISING FROM YOUR USE OR INABILITY TO USE THE APP, ANY CONTENT ACCESSED THROUGH THE APP, OR ANY FAILURE OF THE FILTERING TECHNOLOGY.
IN NO EVENT SHALL PURUS'S TOTAL LIABILITY TO YOU EXCEED THE AMOUNT YOU PAID FOR THE APP.
5. Acceptable Use
You agree to use Purus only for lawful purposes. You may not attempt to circumvent, disable, or interfere with the filtering technology. You may not reverse engineer, decompile, or modify the app.
6. Pricing and Subscriptions
Purus is available as a free download. Core browsing and filtering features — including domain blocking, DNS-level filtering, keyword filtering, and safe search enforcement — are provided at no cost and do not require a subscription or account.
PurusAI is an optional add-on offered as an auto-renewing monthly subscription ($4.99/month, or as displayed at the time of purchase). Subscription payment is charged to your Apple ID account at confirmation of purchase. Your subscription automatically renews at the end of each billing period unless auto-renewal is turned off at least 24 hours before the end of the current period. Your Apple ID account will be charged for renewal within 24 hours prior to the end of the current period, at the price you agreed to at purchase. You can manage or cancel your subscription at any time in your device's Settings, under your Apple ID > Subscriptions. Payment is processed entirely by Apple; Purus does not receive or store your payment information.
Subscription prices are non-refundable except as required by applicable law or Apple's App Store refund policies.
7. No Guarantee of Complete AI Filtering
PURUS DOES NOT GUARANTEE THAT PURUSAI WILL DETECT OR BLOCK ALL EXPLICIT OR INAPPROPRIATE IMAGE CONTENT. PurusAI uses on-device machine learning to identify and filter certain visual content, but no automated detection system is perfect. Some content may not be identified or blocked. PurusAI is an additional layer of protection and should not be relied upon as the sole means of protecting a minor from inappropriate content. Parents and guardians remain responsible for supervising minors' device use.
8. Third-Party Services and Network Extension
Purus integrates with third-party services including AdGuard DNS Family Protection. Enabling this feature installs a system-level Network Extension (DNS proxy) on your device to filter content at the network level. Your use of this service is subject to AdGuard's terms and privacy policy.
If you enable the optional search suggestions feature in Settings, partial search queries you type may be sent to your selected search engine (Google or DuckDuckGo) to retrieve suggestions. This feature is off by default. Your use of any search engine accessed through Purus is subject to that search engine's own terms and privacy policy.
The app displays content from third-party websites. Purus is not responsible for the content, accuracy, or practices of any third-party website accessed through the browser.
PurusAI's image analysis is performed entirely on-device and does not rely on any third-party service or external API. No third party is involved in PurusAI's filtering decisions.
9. Reporting Incorrectly Blocked Content
If Purus blocks a website you believe was blocked in error, you may report it to us using the in-app reporting feature. We review reports and make adjustments to our filtering lists as appropriate, though we do not guarantee a specific response time or outcome.
10. Intellectual Property
Purus and its original content, features, and functionality are owned by Purus LLC and are protected by applicable intellectual property laws. Third-party trademarks and logos referenced in Purus materials are the property of their respective owners. Purus is not affiliated with or endorsed by Google, YouTube, Reddit, Amazon, DuckDuckGo, Bing, Yahoo, AdGuard, or any other third party whose services are referenced.
11. Disclaimer of Warranties
PURUS IS PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
12. Changes to Terms
We reserve the right to update these Terms of Service at any time. Material changes will be communicated through the app or our website. Continued use of Purus after changes constitutes acceptance of the updated terms.
13. Governing Law
These Terms of Service are governed by the laws of the State of Utah, United States, without regard to conflict of law provisions.
14. Contact
For questions about these Terms of Service, contact us at: