To add a VPN app to your Android phone and use it,follow these steps:

1. Choose a VPN Service: Select either NordVPN or 123VPN based on your preference. NordVPN is simpler, while 123VPN offers a modern, sleek design.

2. Download the VPN App: Visit the respective VPN app store on the Google Play Store, download the chosen VPN app, and review the skin and language customization options.

3. Unlock the VPN: After downloading, unlock the app by pressing the "Unlock" button.

4. Configure VPN Settings:

   • Host and Local Servers: Set NordVPN as both your host and local server.
   • Username and Password: Enable username and password settings and enter them in the respective fields.
   • Customization: Look for a "Customization" or "Account Settings" option, especially for a better default VPN site.

5. Log In and Activate: Log in to your account using your credentials, and activate the VPN for secure access.

6. Use the VPN:

   • Type the URL of the website you want to access.
   • Use your username and password if necessary.

7. Check Website Blockage: Test websites to ensure the VPN is blocking them as expected.

8. Additional Features: enable a default VPN site if available, and ensure NordVPN is up-to-date for security.

9. Security Tips: Use public servers and avoid personal accounts. Avoid using a username and password to access the website.

10. Troubleshooting: If issues arise, check the VPN settings, use YouTube tutorials, or contact support.

By following these steps, you can effectively use NordVPN on your Android device for secure online activities.