Does Wireless Dongguan DG—FREE charge?

** Wireless Dongguan DG—FREE is free**. Users only need to download the "Dongguan Unlimited" APP (both Android and Apple versions have been released, search "Dongguan Unlimited" in major application markets and APPSTORE to download), and after registering and logging in, they can use "Wireless Dongguan DG-FREE" to access the Internet for free for an unlimited period of time.