Hi @bng18par and welcome to Trend Micro Community!
I understand that you want to know what software you should use on an Android cellphone. Let me help you with this.
Internet Security subscription can only be used on Windows computer.
For the Android device, you will be using the Mobile Security software. You should have the Mobile Security activation key or license in order to install the program or you may also use the Maximum Security serial number as an activation key for the Mobile Security program.