kach: Gym & Workout Tracker

kach is an iPhone gym tracker: log every set on your phone, or run the entire workout from Apple Watch without the phone. Follow the session from the lock screen with a Live Activity. kach then suggests your next weight and reps from your history: more when you hit the top of your range, a lighter reset when you stall. Every number is a suggestion you can change. No account, no subscription, works offline. Your training stays on your phone. ON IPHONE OR APPLE WATCH • Log on iPhone, or run the entire workout from Apple Watch without the phone • Apple Watch counts reps for squats, bench, deadlifts, shoulder press, curls and rows • It taps your wrist at your target • Follow your workout from the lock screen with a Live Activity AUTO-PROGRESSION • Hit the top of your rep range and kach suggests more weight next time • Stall three sessions in a row and it suggests about 10% less so you can build back up • Tap Why on any number to see the reasoning PLAN ANY ROUTINE • Start from a proven template or build your own split • Name your days, set weight, reps and rest your way • 870+ 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 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 BUILT FOR IPHONE DUO • Unfold it and the workout splits on the hinge: exercises on one side, sets on the other • Folded, tabs and back sit in the side strip • Turn any iPhone on its side for the same two-pane view kach is free to use. A short ad plays before a workout starts, never mid-set. A one-time €8.99 purchase removes ads for good. No subscription, ever.