There are 2 places where you can get your License Key:
In your Email:
Once you subscribe you will receive an email from us with a subject saying New License Generated. You’d find your Application License Key in the email. However, don't forget to check your Spam or Junk Email Folder if you couldn't find an email in your Inbox.
On your EXPLAINDIO Membership Page:
Login to your EXPLAINDIO Membership Account in this URL: https://account.explaindio.com or by clicking here. On your Dashboard click on Licenses. And, you will find your License Code (License Key) by the application name.