Cannot uninstall third party softwares in mac
Contact Mobile Stream

Contact the developers of Easy Tether USB, Mobile Stream. They are best placed to help you remove the software.

By contacting the developers, you will help prompt them to provide better uninstall support.

Manually Removing Easy Tether's KEXT

If Mobile Stream are unable to help, you can manually unload the kernel extension using the following command:

sudo kextunload /System/Library/Extensions/EasyTetherUSBEthernet.kext


Next, find and remove the following file. You will need administrator rights to delete this file:

/System/Library/Extensions/EasyTetherUSBEthernet.kext


This assumes you installed the EasyTether - Android Tether Solution driver.