# DNS Sinkhole — DNS Ad Blocker & Firewall

> DNS Ad Blocker & Firewall (iPhone/iPad app by Christine Martin.)

- Source: https://appshunter.io/ios/app/dns-sinkhole/id6760730731 (this page in markdown: same URL + `.md`)
- Developer: [Christine Martin](https://appshunter.io/developer/1874045866)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 4 MB
- Languages: American English, French (France)
- Released: 2026-10-09
- Data updated: 2026-10-12

## What is DNS Sinkhole?

Choose encrypted DNS without replacing your VPN.

Sinkhole helps you understand, select, and configure a trusted DNS-over-HTTPS provider on iPhone and iPad. It adds an encrypted DNS configuration for the provider you choose, using the system API iOS provides for this.

SIMPLE GUIDED SETUP

Choose your goal — privacy and security, family protection, or advanced custom DNS — then follow clear installation steps designed for everyone.

CURATED PROVIDERS

Compare privacy and security-focused options from established public DNS providers. Depending on your selection, provider-side filtering may cover known malware, phishing, trackers, ads, or adult content.

ADVANCED MODE

Use a trusted custom HTTPS DNS endpoint from a service you control or configure, including compatible self-hosted resolvers.

HONEST STATUS

Sinkhole reads its own state from iOS: whether a configuration exists, and whether iOS has it active. It also sends a single DNS test request to confirm the selected endpoint is reachable, and keeps that separate from activation.

PRIVACY BY DESIGN

• No Sinkhole account
• No LorisLabs DNS server
• No VPN tunnel and no VPN configuration
• No advertising or analytics SDK
• No DNS query or browsing history received by Sinkhole

Once active, DNS requests go directly from your device to the provider you selected. That provider's privacy policy and filtering behavior apply. Sinkhole cannot see or fabricate per-domain statistics.

IMPORTANT

iOS asks for your approval before Sinkhole can add a DNS configuration, and only you can select it in Settings > General > VPN & Device Management > DNS. You can switch away or remove it there at any time, without the app. A VPN may choose to override system DNS settings; behavior depends on that VPN.

## Is DNS Sinkhole safe?

Not enough ratings yet to assess DNS Sinkhole.

## Is DNS Sinkhole legit?

DNS Sinkhole appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for DNS Sinkhole is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-09

No release notes.

## More apps by Christine Martin

- [TypeMetrics](https://appshunter.io/ios/app/typemetrics/id6758631803)
- [Clasp - Clipboard Manager](https://appshunter.io/ios/app/clasp-clipboard-manager/id6759068382)
- [Lumen for Frigate](https://appshunter.io/ios/app/lumen-for-frigate/id6760238729)
- [404 Network](https://appshunter.io/ios/app/404-network/id6760702536)
- [AuroraPulse - Aurora Tracker](https://appshunter.io/ios/app/aurorapulse-aurora-tracker/id6761294590)

All apps by Christine Martin: https://appshunter.io/developer/1874045866

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-12.*