Android controls creation of the VPN interface
Android uses the VpnService API for apps that create a VPN interface. The system displays a permission dialog so a VPN app cannot silently take over device routing. Accepting that prompt allows the app to establish the VPN interface under Android’s rules.
The prompt is not a trust certificate
The operating-system dialog does not certify the provider’s privacy practices, server security, or business model. It confirms that the app is requesting a capability Android treats specially. You still need to obtain the app from a source you trust and review the provider’s documentation.
Only one active VPN is typical
Android normally has one prepared VPN service for a user/profile at a time. Other VPN, firewall, DNS, or security apps can conflict because several tools may try to control related network behavior. When troubleshooting, temporarily simplify the configuration.
Check the persistent indicator
Android shows VPN status while a connection is active. Use the app status and system indicator together, then test connectivity. If the app claims it is connected but Android does not show the expected VPN state, reconnect and investigate before assuming traffic is routed as intended.
Sources & further reading
This guide is general educational material. Platform behavior, provider policies, and network conditions can change. Check current documentation before relying on a specific configuration.
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