You do not need to buy a license for Unity DIF.

The software Unity DIF can be downloaded from our website.

Link: Search results for unity dif

Once you have installed the software Unity DIF in our laptop, you can execute it. Then the next message will show up:

If you then select "Yes" it will open the License Manager. It is important to have an account already created in our license portal.

Then the registration will start and on the license manager if you open it you will see the Unity DIF there with the Permanent status:

Remember to delete the Trial.

If after the 21 days you see the next message and you have already registered the software:

Then select "Yes" the next message will show up:

If you do not want to see that message every time you go to the license manager select the "Trial" of Unity DIF using the right click then select "Delete".

Released for: Schneider Electric Ireland