Hello isentiadan,
Thanks for sharing your concern with us. We will surely help you in this matter.
In order to your concern
I want to upgrade to the premium version of this plugin, but cant see the License tab in the plugin settings. I can only see the “Main Setup”, “Domain Control” and “Advanced Options” tabs. Does the License tab only become viewable after purchasing the premium license?
Yes, you are absolutely right if you want to upgrade your license from free to the premium you have to purchase the license as per your requirements.
We would like to inform you we have different versions of Google Apps Login (Free, Premium, Enterprise). Before you buy we would like to suggest please visit our site and go through the features listing so you will get an idea of what is more suitable to satisfy your needs. Please click here to read more about features.
We also have detailed documentation of Google Apps Login plugin if you wish to read more about the plugin please click here.
I hope I was able to help you. If you need further assistance, or if you have any query please let me know I will be more than happy to assist you.
Thanks & Regards,
Bhavesh Akhade
Sr. Solution Engineer
