RepSense vs BarTrace

RepSense is a strength training log that pays attention to how you lift, not just what you lift. Wear Apple Watch and it counts your reps and times every one. Leave it at home and logging a set on iPhone still takes one tap. EVERY REP, TIMED With Apple Watch, RepSense counts your reps as you lift and measures the tempo of each one, how long you take on the way up and the way down. After the set you see how consistent you were, so you know whether you kept control or rushed the last few reps. LOG EVERY SET IN ONE TAP No Watch? No problem. On iPhone, weights and reps carry over from last time, so logging a set is a single tap. RepSense suggests what to try next based on the sets you've logged, and you can take the suggestion or ignore it. REST, THEN GO AGAIN The rest timer starts itself when you log a set, with your last set and what's next beside it. Logged the wrong thing? Undo is there for the whole rest. WORKOUTS THAT FIT HOW YOU TRAIN • Start from Push, Pull, Legs, Upper Body, Lower Body or Full Body, or build your own. • Open any workout to see its exercises with last time's numbers, then start or edit it. • Reorder, add or remove exercises in one place, before or during a session. • Changed something mid-workout? At the end, RepSense asks whether to keep it in your saved workout. • Turn on auto-rotate and RepSense picks your next workout from your split. KNOW HOW EVERY SESSION WENT Each workout ends with a clear summary: how it compared with last time, every new personal record, and the tempo of every set. PROGRESS YOU CAN SEE Your week, your training volume and your records at a glance, with every past session one tap away. TRAIN WHAT'S READY The Recovery map shows which muscles are fresh and which still need rest, front and back, so you can choose a workout your body is ready for. MADE FOR IPHONE DUO Unfold iPhone Duo to see your current set and the whole session side by side, or turn it sideways for every exercise in view. Folded shut, the outer display still fits the whole set card. ON YOUR LOCK SCREEN A Live Activity keeps your workout and rest timer on the Lock Screen and in the Dynamic Island, and it clears away the moment you finish. APPLE HEALTH RepSense saves each strength workout you do to Apple Health, so it counts toward your activity. It doesn't read your Health data. PRIVATE BY DESIGN No account and no sign-up. Your workouts stay on your devices and in Apple Health. Nothing is used for tracking.

BarTrace turns your Apple Watch into a barbell sensor. Start a set on the watch, lift, and your iPhone returns the numbers for that set: rep count, depth, tempo, bar velocity and velocity loss. It is built for lifters who already train to a plan and want measurement instead of estimation. Powerlifters, strength athletes, and anyone running velocity-based or autoregulated training who does not want to buy a dedicated bar tracker. HOW IT WORKS 1. Choose squat, bench press or deadlift on the watch and tap record. 2. Lift. Recording runs inside a workout session, so it continues with your wrist down and your phone in your bag. The session is saved to Apple Health. 3. Stop the set. It transfers to your iPhone automatically and is analyzed there. WHAT YOU GET FOR EVERY SET Rep count, detected from the motion signal. Range of motion in centimeters, so you can check depth consistency rep to rep. Tempo, split into eccentric and concentric duration. Bar velocity in meters per second. Velocity loss across the set, the standard cue for ending a set before form degrades. Sticking points: the moment mid-ascent where the bar slows sharply, marked on the rep. WHAT YOU CAN LOOK AT A bar path chart for each rep, plotting vertical against fore and aft movement. A velocity curve across the rep. Rep comparison, to see how the last rep of a set differed from the first. Workout history, grouped by day. Trends per lift over time. ACCURACY, STATED PLAINLY Rep count, depth, tempo and velocity are the metrics to rely on. The bar path shape is a reconstruction from wrist motion, not a camera measurement and not an absolute reading. Use it to compare reps against each other, within a set and between sessions, rather than as a precise record of where the bar was in the room. BarTrace is a training tool. It is not a medical device and it does not give medical advice. PRIVACY Everything is recorded, processed and stored on your iPhone and Apple Watch. Nothing is sent to a server, because there is no server. No account, no sign-up, no advertising, no tracking, no third-party analytics. Workout sessions are written to Apple Health, where they stay under your control. REQUIREMENTS iPhone running iOS 17 or later and an Apple Watch running watchOS 10 or later. An Apple Watch is required to record. The iPhone app does the analysis and holds your history.