The Explore IoT Kit includes a 12 months free trial to the Arduino Create Maker Plan. Once the trial expires you will need to renew the subscription to the maker plan by going to this page. The Arduino Create Maker Plan included in the kit offers unlimited compilation time and extended access to some of the features of the Arduino IoT Cloud allowing teachers to run their classes with the certainty that they won’t find any limitation on them. If you don’t renew your Maker Plan subscription, you will be automatically downgraded to the Arduino Create Free Plan. This plan (Arduino Create Free Plan) offers lower compilation time per day, and limit the access to some of the features of the Arduino IoT Cloud, which means that only 3 out of the 10 activities of the kit can be completed with it.