Yes, Discovery Plus does have a subscription fee. The service offers different subscription plans that may include variations in pricing based on the content access and whether or not advertisements are included in the viewing experience. Typically, there are options for a monthly subscription as well as annual plans that may provide financial savings for viewers who commit for a longer period. Discovery Plus features a vast library of shows and documentaries from various Discovery networks, making it a popular choice for fans of non-fiction programming. For the latest details on pricing and specific subscription options, it is best to visit the current web page of Discovery Plus, where you will find up-to-date information.