Sarg, the Drill Sergeant in Your Pocket

Field notes

Sarg builds a four-week training block from a user's goal, experience level, and available equipment, then lets them swap days or regenerate a week. Its guided sessions include set-by-set instructions, rest timers, form cues, and a completion debrief. The Apple Watch component is described as recording live BPM and active calories, synchronizing with the phone even when the phone is nearby or away, and writing workout and weigh-in data to Apple Health.