The Intensity App

Training hard means knowing how close to your limit a set really was. The Intensity App measures one thing: how well you judge your own effort. The Intensity App is free: no purchase, no subscription and no ads. HOW IT WORKS Log a set: the weight, the reps, and how many reps you think you had left (RIR) or how hard it felt (RPE). Log set saves it on your phone. You do not need to answer a second question about how an ordinary set ended. On a calibration set, the app shows you a clear endpoint first, one you can see rather than feel. You give your guess before you reach it. When the set is over, the app compares your guess with what happened and shows you the gap. If the endpoint was not reached, the attempt is kept but not scored. It is never counted as a result it is not. The Intensity tab shows your latest gap and every confirmed test, so you can see whether it is closing. TWO KINDS OF FAILURE Watch an exercise when you need a demonstration. An animated figure, drawn in the app, illustrates six machine movements. The leg-extension lesson shows full reps slowing, then an attempted rep that stops moving short of the full range. Other exercise animations show the movement without claiming to demonstrate failure. In Settings, Understand failure explains technical failure (your form breaks) and muscular failure (the weight stops moving), with optional leg-movement illustrations. Your workout is not interrupted by a teaching card before every exercise. CALIBRATION FROM DAY ONE, EVERYTHING ELSE EARNED A calibration set takes a machine or single-joint dumbbell lift to the point the weight stops moving: that is the measurement, and it is available from your first session. Outside calibration, the app never sets failure as the target of a set by default. After 10 completed, logged sessions you can choose to aim a set at technical failure in More options. After 40 you can choose muscular failure, on machines and single-joint dumbbell lifts only, never a loaded barbell. Each unlock starts with a short explanation. Aims reset after every set and exercise. App opens, unfinished workouts, empty workouts and calibration-only workouts do not count. Choosing an aim never records it as a confirmed failure. YOUR EXERCISE LIST Add exercises with target sets and reps. In a workout the next exercise, its reps and the last weight you used fill themselves in. PRIVATE BY DESIGN No account, no sign-in. Logging and the demonstrations need no internet connection. Your logs stay on your phone. Delete your app-local records from Settings whenever you like. Choose RIR or RPE in Settings. The Intensity App is a training log, not medical advice. If something hurts, stop.