Quad9 Connect

Quad9 Connect

Android application for Quad9 recursive DNS cybersecurity and privacy services

Quad9 Connectivity DNS & Hosts Internet Security System

Description

Quad9 Connect is an Android and ChromeOS app that sends your DNS queries to <a href="https://quad9.net">Quad9's secure, private, open recursive DNS service</a>.

Quad9 Connect adds additional functionality and features compared to using Android's Private DNS feature to utilize encrypted DNS or configured Quad9 in Chrome on ChromeOS.

The application creates a split VPN tunnel with Android API "VpnService" to configure an alternate DNS server on Android and ChromeOS.

## Features
- DNS over TLS or DNS over UDP
- DNS Query Log
- Trusted Networks
- Blocked Query Notifications
- Local Domains
- Excluded Applications

What’s new (1.2.3)

- The app now targets Android 17 (SDK 37)
- Cryptographically secure random number generator is now used when generating DNS message IDs (a test DNS message is created by the app to verify connection to the Quad9 DNS)
- Minor UI scaling fixes in the statistics page
- Various minor memory leaks and issues fixed throughout the app

Anti-features

Properties of this app that are worth knowing about before installing.

  • TetheredNet

Versions

Version Date Size Requires Android Download
1.2.3 current
ff14a4349511b12f…
2026-07-18 16 MB API 23
1.2.2
46c8a93bae8ec9cf…
2026-07-14 16 MB API 23
1.2.1
a2c994217eb37468…
2026-04-30 16 MB API 23

Permissions

What the app asks the system for. Android only grants sensitive access after you confirm it.

  • Internet accessSend and receive data over the internet.
  • Run at startupStart automatically after the device is switched on.
  • EXPAND_STATUS_BAR
  • Network stateCheck whether and how the device is connected.
  • Foreground serviceKeep running in the background, visible in the status bar.
  • FOREGROUND_SERVICE_SYSTEM_EXEMPTED
  • NotificationsShow notifications.
  • Approximate locationDetermine the location via the network.
Show 4 more permissions
  • Precise locationDetermine the location via GPS.
  • Wi-Fi stateRead information about the Wi-Fi connection.
  • Installed appsSee which apps are installed.
  • aegis.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

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