The developer website has for more info about this app including a FAQ. It does not work with Mac OS without 3rd party driver. USB tethering works well with all recent versions of Windows and Linux. Since WiFi tethering drains battery very fast, you would need to put the phone on a charger one way or another (AC or USB) and USB connection is way faster and more reliable then WiFi.

WiFi tethering is suboptimal for such a use case. This is handy if you often use your phone as a modem to provide your laptop with Internet connection for a longer period of time. Just connect the phone to your laptop and you are instantantly connected to the Internet from the laptop over 3G/4G network. Auto USB Tethering automates all these manual steps.

USB tethering is available since Android version 2.2 but it takes quite a few annoying taps on the phone screen to turn the feature on. Whenever the phone is connected to a computer or laptop via a USB cable the app automatically turns on USB tethering, optionally after confirmation by the user.

Galaxy s7 usb tethering for mac