Our core commitment
Purus is a content-filtering browser for iOS. Your browsing stays on your device. We do not collect, store, or transmit your browsing history, search queries, or any personally identifiable information.
1. What Purus Does
Purus is a web browser that filters explicit content, ads, and trackers on your device. All content filtering happens locally using on-device rule sets and a DNS proxy. No images, URLs, or browsing history are ever transmitted to Purus or any third party for analysis.
2. Information We Collect
What we do not collect
Purus does not collect, store, or transmit your browsing history, the URLs you visit, search queries you enter, images or content from pages you view, or any personally identifiable information.
Filter list updates
Purus periodically fetches updated content filter rule sets from our servers to keep blocking rules current. These requests contain no user-identifying information and no browsing data. Only a standard network request is made to check for and download updated rules.
False positive reports
If you tap "Report it" on a blocked page, you may submit the blocked URL directly through the app. This submission is voluntary.
Optional search suggestions
If you enable "Search Suggestions" in Settings, partial text you type into the search bar is sent to your selected search engine (Google or DuckDuckGo) to retrieve autocomplete suggestions as you type. This feature is off by default. When disabled, suggestions are generated only from your own on-device search history, which never leaves your device. Your use of this feature when enabled is subject to your selected search engine's own privacy policy.
Voice search
If you use the microphone to search by voice, your speech is processed entirely on-device using Apple's on-device speech recognition. Your voice is never transmitted to Purus or any third-party server for this feature.
Downloads and Photos access
If you choose to save an image from a webpage, Purus requests access to your Photos library solely to save that image at your direction. Purus does not browse, scan, or access any other content in your Photos library.
App analytics
Purus does not use third-party analytics SDKs. We do not track app usage, session lengths, or in-app behavior.
3. How Filtering Works
All content filtering in Purus operates entirely on your device through multiple mechanisms: a locally stored block list and compiled content rule list checked against every web request, a DNS proxy that routes domain lookups through AdGuard's Family Protection filtered resolver, a keyword filter that scans search queries against a list of blocked terms, and a search query filter that enforces safe search parameters before queries are sent to search engines. None of these mechanisms send your data to Purus. DNS queries are resolved through AdGuard's servers under their Family Protection configuration; their privacy policy is available at adguard.com/en/privacy/dns.html.
4. Data Storage
Purus stores only the following data locally on your device: the content filter rule set files used for blocking decisions, your bookmarks and tab data, your local search history (used only for on-device suggestions, never transmitted), and your app preferences such as whether you have completed onboarding and your enabled feature settings. No data is stored on Purus servers. No account or login is required.
5. Third-Party Services
Purus integrates with the following third-party services in a limited capacity:
- AdGuard DNS Family Protection: Provides filtered DNS resolution via a system Network Extension. Your DNS queries pass through their resolver under their family filter configuration. Review AdGuard's privacy policy for details on their data handling.
- Google and/or DuckDuckGo: If you enable optional search suggestions, partial search text is sent to your selected search engine to retrieve autocomplete results. Governed by that search engine's own privacy policy.
- False positive reporting: Used only when you voluntarily submit a false positive report through the in-app reporting feature.
Purus does not integrate any advertising networks, social media trackers, or third-party analytics services.
6. Children's Privacy
Purus is designed to be safe for users of all ages, including children. We do not knowingly collect personal information from anyone, including children under 13. Because no account or personal information is required to use Purus, the app is appropriate for use by minors under parental supervision. Purus is a tool intended to support parental oversight and is not a substitute for direct parental supervision of a minor's device use.
7. Your Rights
Because Purus does not collect personal information, there is no personal data for us to provide, correct, or delete. If you have submitted a false positive report and wish to have it removed, contact us at the email below.
California Residents (CCPA/CPRA)
We do not sell or share your personal information. We do not collect sensitive personal information as defined under California law.
EU/UK Residents (GDPR)
Our lawful basis for processing any data (limited to filter list update requests and, if enabled, search suggestion requests routed through third-party search engines) is legitimate interest in providing a functioning service. No personal data is processed by Purus in connection with these requests.
8. Security
All network requests made by Purus, including filter list updates, use encrypted HTTPS connections. Because no personal data is collected or stored on our servers, the risk of a data breach affecting your personal information is minimal.
9. Changes to This Policy
We may update this Privacy Policy to reflect changes in the app or applicable law. Material changes will be noted with a revised effective date. Continued use of Purus after a policy update constitutes acceptance of the revised policy.
10. Contact
For questions about this Privacy Policy, contact us at: