If you are an Explaindio 3 user and if you are eligible for a FREE UPGRADE from Explaindio v3 to v4 Explaindio Support will migrate you to Explaindio 4 on a scheduled time. When you get this FREE UPGRADE you will receive an email like the following figure.
When you receive this email please login to your Explaindio Membership Area here: https://account.explaindio.com/in/member
You can find your Explaindio 4 License Key in the License Tab.
Simply download and install the software. Activate using the license key and validate your account.
Also, don't forget to watch the tutorial videos in your training area inside your Explaindio 4 Content area.
You may also directly visit the Training area in this URL: https://account.explaindio.com/content/training-ex4/