When you initially sign up for a Nearpod account, you are provided a free Silver level account and are provided a free Gold trial when you select one of the premium features such as --
• Including web content, Youtube videos, Twitter feeds and Virtual Reality Field Trips in your lessons.
• Sharing a lesson with your students in Student-paced mode so they navigate it at their own pace.
• Allow your lessons to be accessible to up to 50 students instead of just 30.
If after the trial you opt to upgrade to a paid Gold license, you will have all of the features listed in the document below in the Gold column.