This post is part of the Local Network Privacy FAQ.
Can my app trigger the local network privacy alert when the device is on WWAN?
Yes. While the local network privacy alert is most commonly seen when the device is on a Wi-Fi network, that’s not required. It’s possible for your app to trigger the local network privacy alert on a device that is on WWAN. Indeed, the alert can show up even if you:
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Leave the current Wi-Fi network in Control Center
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Turn Wi-Fi off in Settings
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Enable Airplane Mode in Settings