Quad9 Connect is an Android application for ChromeOS and Android 9 or later. It creates a secure tunnel between the device and Quad9 for sending DNS queries via DNS over TLS. Also, it provides additional features like a query log, one-click service switching, and the ability to report false positives.
Quad9 Connect is not a VPN but uses the VPN functionality of the device to accomplish encrypted DNS and the features associated with the application. When Quad9 Connect is enabled, it is not possible to use another VPN connection on the device; if you want the benefit of encrypted DNS but also want to run a separate VPN connection, you may consider this article to Change DNS Server on Your Chromebook instead of Quad9 Connect.
Step 1 - Install and open the app.
Install the latest version of Quad9 Connect from the Google Play store: Quad9 Connect
Step 2 - Activate - You can choose how you want the app to be displayed: Phone, Tablet, or Resizable. You can select your preference.
You can read about how Quad9 protects your device by clicking the arrow in the bottom right corner.
Read and click ‘OK’ on the connection request. Note: You have to connect to this VPN to use Quad9 Connect.
Click the play button icon to get connected!
Quad9 now protects you!
The number ‘9’ and VPN key logo should appear in the bottom right corner of your screen.
You can also confirm your connection to Quad9 by opening this link. https://on.quad9.net
Step 3 - Settings option
You will find the setting options by clicking on the menu icon in the upper left-hand corner. Quad9 Connect allows you to configure which Quad9 services you wish to use and customize the app's behavior on your device.
Navigate to Google Play Store
Click on the Quad9 Connect icon
Confirm you want to uninstall Quad9 Connect.
There are several ways to verify you have uninstalled Quad9 Connect.
You will see an option to install Quad9 Connect again, the number ‘9’ icon, and the VPN key will not appear on the bottom right corner of your screen.