I actually tried this, but they actually do not 100% block out the Wi-Fi signal. It only blocks the Cellular signal. You can download app on the appstore and test the connections.
Jailbreak doesn't really address the issue of tracking. You never really know if you are being tracked unless the phone is dead/battery removed or blocked in a faraday type cage
Steel ammo can works better. Also protects from EMP
I actually tried this, but they actually do not 100% block out the Wi-Fi signal. It only blocks the Cellular signal. You can download app on the appstore and test the connections.
Jailbreak doesn't really address the issue of tracking. You never really know if you are being tracked unless the phone is dead/battery removed or blocked in a faraday type cage