Your mobile carrier and ISP are less evil twins

Mobile carriers may offer free public Wi-Fi to their customers, but they track data much in the same way as hackers do with evil twins.

Image by Frogger420

How Can I Use my Mobile Service Safely?

The best way to safely use your mobile service is to use a VPN on your mobile devices.  All the time. If you can't use a VPN, at least change the default DNS server.