# Block 99% of iOS Ads with AdGuard and Custom Filters

**URL:** <https://onehack.st/t/block-99-of-ios-ads-with-adguard-and-custom-filters/306087>\
**Category:** Tutorials & Methods\
**Tags:** privacy, piracy, browsers\
**Created:** [June 6, 2025, 5:21am UTC](https://onehack.st/t/block-99-of-ios-ads-with-adguard-and-custom-filters/306087 "2025-06-06T05:21:59Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![SRZ](https://onehack.st/user_avatar/onehack.st/srz/32/146132_2.png) [@SRZ](https://onehack.st/u/SRZ)\
**Post date:** [June 6, 2025, 5:21am UTC](https://onehack.st/t/block-99-of-ios-ads-with-adguard-and-custom-filters/306087/1 "2025-06-06T05:21:59Z")

</div>

### Short Introduction

This method helps iOS users block nearly all ads, trackers, and privacy-invasive elements by combining AdGuard with powerful custom filters like OISD and uBlock Origin. It’s a clean, powerful trick that enhances browsing privacy without breaking websites or using risky VPNs.

### Simplified One-Line Flowchart

AdGuard DNS Setup ➔ Import OISD & HaGeZi Filters ➔ Add uBlock Filters ➔ Enable Safari Filters = Near 99% Ad Blocking on iOS

### Easy Step-by-Step Method

**Step 1: Add OISD Filter to AdGuard**

- Go to [https://oisd.nl](https://oisd.nl)
- Click “Others” under “How do I use it?”
- Choose **AdGuard for iOS** , copy the blocklist
- Open AdGuard → Shield icon → DNS Protection → DNS Filtering → DNS Filters → Add Filter → Paste it

**Step 2: Add HaGeZi DNS Filters (7 Total)**

- Search for **HaGeZi DNS Blocklist GitHub** on Google
- Use these categories (Medium/Essential only to avoid site breaks):
  - Threat Intelligence Feeds – medium
  - Encrypted DNS/VPN/TOR/Proxy bypass
  - DynDNS
  - Badware Hoster
  - World’s Most Abused TLDs
  - Anti-Piracy

- Paste each filter one-by-one in AdGuard DNS Filters as done in Step 1

**Step 3: Enable Safari Content Blocking Filters**

- AdGuard → Shield icon → Safari Protection → Filters
- Enable:
  - All 3 under **Ad Blocking & Security**
  - All **Privacy** filters except Fanboy’s Anti-Facebook
  - **AdGuard Social Media Filter** under Social Widgets
  - All **Annoyances** except Fanboy’s
  - **AdGuard DNS** and **Experimental Filter** under Other

**Step 4: Add uBlock Origin Filters to AdGuard**

- Go to [https://github.com/gorhill/uBlock](https://github.com/gorhill/uBlock)
- Click `filter lists`, pick any list (e.g. annoyances.txt) → click `...` → `View Raw`
- Copy the **raw URL** , e.g., `https://raw.githubusercontent.com/uBlockOrigin/uAssets/master/filters/annoyances.txt`
- In AdGuard → Custom → Add Filter → Paste the URL
- Repeat for other uBlock filters (up to 20 if needed, each under 40,000 rules)

**Step 5: Finalize Setup**

- Go to AdGuard homepage and tap the **circular arrows** to refresh and update all filters

### Quick Tips

- If WiFi disconnects or VPN gets stuck on “connecting,” one of the filters may be incompatible — disable and re-enable one at a time
- Skip Fanboy filters if they break websites
- Stick to max 40K rules per custom list due to iOS 17.4 bug
- Use filters only from trusted sources

### Important Notes

- This method doesn’t block **YouTube in-app ads** , **pagead.js** , or **interstitial ads**.
- Works only in **Safari** and apps using DNS-level filtering.
- VPN-based alternatives (like Luna or Surfshark) may cause privacy risks, location issues, or app breakage.
- AdGuard’s DNS and DoH (DNS-over-HTTPS) ensure encrypted privacy and performance across iOS devices.