Privacy Policy

Last updated: March 27, 2026

The Short Version

AdErasr is designed to protect your privacy, not compromise it. We do not collect, transmit, or sell your personal data. All blocking, analytics, and reporting happen entirely on your device.

1. Data We Do Not Collect

AdErasr does not collect any data from you. There are no analytics, no telemetry, no crash reporting, and no usage tracking built into the app. We do not know who you are, what sites you visit, or how you use the app. We do not sell, share, or monetize any user data.

2. Safari Content Blocking

AdErasr uses Safari's Content Blocker API to block ads, trackers, and annoyances. All content blocking happens entirely on your device using rules compiled by Safari's WebKit engine. Your browsing data is not accessible to AdErasr or its developers. The Content Blocker API is privacy-by-design — Apple does not allow content blockers to access page content or browsing history.

3. Safari Web Extension

AdErasr includes a Safari Web Extension that provides additional protection beyond Content Blockers:

The Web Extension processes page content locally. No browsing data, page content, or URLs are transmitted to AdErasr's servers.

4. Aegis — System-Wide URL Filtering

Aegis uses Apple's iOS 26 NEURLFilter API to block ad and tracker domains across all apps on your device, not just Safari. This is an opt-in feature that you must explicitly enable.

How it works:

What this means for your privacy:

5. Data Stored Locally on Your Device

AdErasr stores the following data locally on your device to provide its features. This data is never transmitted to AdErasr's servers:

You can delete all locally stored data at any time by uninstalling the app or using the "Reset Statistics" option in Settings.

6. iCloud Sync

Your whitelist entries are synced across your Apple devices using Apple's NSUbiquitousKeyValueStore (iCloud key-value storage). This means your whitelisted domain names are stored on Apple's iCloud servers, governed by Apple's Privacy Policy. No other data (block statistics, tracker records, browsing history) is synced to iCloud. You can disable iCloud sync for AdErasr in iOS Settings → [Your Name] → iCloud.

7. Filter List Updates

AdErasr periodically downloads updated filter lists to keep blocking rules current. These updates are fetched through a Cloudflare proxy server from a GitHub repository. These downloads include a static API key for rate limiting but do not include cookies, user tokens, device identifiers, or any data that identifies you. As with any HTTPS request, your IP address is visible to Cloudflare's infrastructure.

8. Tracker Intelligence

The Daily Intelligence Report includes descriptions of tracker companies and their data practices. These descriptions are informational and based on publicly available information. They do not constitute legal claims or factual assertions about those companies. AdErasr is not responsible for the accuracy of these descriptions.

9. Third-Party Services

AdErasr uses the following third-party services:

AdErasr does not integrate with any advertising, analytics, or data broker services.

10. This Website

This website (aderasr.com) does not use cookies, analytics services, or tracking scripts. All fonts are self-hosted. The only data transmitted from this site is through the contact form, which collects the name, email address, subject, and message you provide, sent via Resend to our support inbox. We use this information solely to respond to your inquiry and do not add you to any mailing list.

11. Your Rights (GDPR & CCPA)

For EU/EEA residents (GDPR): You have the right to access, rectify, erase, restrict processing, and port your data. Since AdErasr stores data locally on your device and does not collect it on our servers, you exercise these rights directly: uninstalling the app deletes all local data, and iCloud data can be managed via iOS Settings.

For California residents (CCPA): AdErasr does not sell personal information. We do not share personal information with third parties for their direct marketing purposes. You have the right to know what data is collected (none, beyond the local storage described above) and to request deletion (uninstall the app).

12. Apple Privacy Manifest

AdErasr's PrivacyInfo.xcprivacy declares:

13. On-Device Inter-Process Communication

The main app and its 7 extensions (6 Content Blockers + 1 Web Extension) share data through an App Group container (group.io.joshuahart.AdErasr). This is on-device inter-process communication via shared UserDefaults and a local SwiftData database. No network transmission is involved.

14. Live Activity, Dynamic Island & Widgets

Block count statistics may be displayed on your Lock Screen (Live Activity), Dynamic Island, and Home Screen widgets. All data shown is computed locally from on-device statistics and is never transmitted to any server.

15. Security

All on-device data is protected by iOS device encryption. There are no server-side databases to breach. The Cloudflare Worker proxy uses HTTPS for all communications. The GitHub authentication token used for filter list delivery is stored server-side only and never appears in the app binary.

16. Data Retention

Block statistics and tracker records are retained for 90 days and then automatically pruned. Whitelist entries and custom rules are retained until you remove them. Achievement progress is retained until you reset it. No data is retained on any server.

17. Children's Privacy

AdErasr does not knowingly collect personal information from children under 13. If we learn that we have inadvertently collected such information, we will delete it promptly. Since AdErasr does not collect any personal information from any user, this provision is precautionary.

18. Changes

If this policy changes, the updated version will be posted here with a new date.

19. Contact

Questions about this policy can be sent through our contact form.