kach: Gym & Workout Tracker

kach is a no-nonsense gym tracker for people who count reps, not followers.

PLAN ANY ROUTINE • Start from a proven template or build your own split • Name your days, set weight, reps and rest your way • 1,200+ exercises, plus your own custom movements

LOG EVERY SET, FAST • Sets pre-filled from your plan — tap to confirm • Supersets, drop sets, warm-ups and AMRAP, all first-class • Swap an exercise if a machine's taken, or add one on the fly • Built-in plate calculator for any bar and the plates you own

WATCH YOUR STRENGTH CLIMB • Per-exercise history, estimated 1RM trends and personal records • Weekly volume, calories and live heart rate • Body measurements with progress photos and videos

ON YOUR WRIST • Apple Watch companion: current set, rest timer and heart rate • Log a full workout without your phone

YOURS, ON YOUR DEVICE • No sign-up and no cloud lock-in — your training stays on your phone • Syncs with Apple Health and Apple Watch • Works offline

kach is free to download and use — no subscription. A short ad plays before each workout starts.