Does my subscription include a Yummly® Smart Thermometer? May 18, 2021 05:59 Updated No. The Yummly Smart Thermometer is available for purchase separately, and requires no subscription to use. Related articles Do I need a subscription to use my Yummly® Smart Thermometer? Am I automatically enrolled in the paid subscription? What's so special about Yummly's subscriber-only recipes? What's included in my Yummly subscription? What is the Yummly Meal Planner?