With iOS 27.3, Apple is adding a new Gym Strength workout to Apple Fitness+. It's a custom fitness option that generates a four-week plan based on a user's goals, experience, schedule, and equipment. People of all experience levels can use the feature, selecting workout days, areas of the body to focus on, and session length. Workouts have recommendations for exercises, reps, sets, and load, plus short video demonstrations from Apple Fitness+ trainers.