Ischys Workout Tracker vs OpenTrainer

Ischys is a fast, private workout tracker for lifters. Every set, routine, and personal record lives entirely on your iPhone — no account, no cloud, no tracking. Your training data is yours. BUILT FOR THE GYM • Log sets in seconds — weight, reps, warmup, drop and failure sets • Build routines and start them in one tap, or freestyle an empty session • A rest timer that keeps running when you leave the app — right on your Lock Screen • Auto-fills your last session's weights and reps, so you're not retyping • Personal records tracked automatically: heaviest set, best volume, most reps APPLE WATCH • Start a workout on your phone and it runs on your wrist • Live heart rate and active calories during the session • Log sets, adjust rest, and end the workout from the Watch YOUR DATA, YOUR DEVICE • 100% on-device — no account to create, nothing uploaded, no analytics • Import your history from other apps (CSV) and export it any time as JSON • Optional Apple Health: save finished workouts and read your heart rate OPEN SOURCE Ischys is open source — see exactly what runs on your device at ischys.app.

OpenTrainer is a workout tracker that respects your time. Log sets in two taps — not five screens. TRACK One-thumb set logging with smart weight and rep steppers, warm-up flags, RPE, cardio and mobility entries. Rest timers with live countdown, haptics, and lock-screen alerts so you never miss the start of your next set. PLAN Build routines by hand with drag-and-drop days, import them as JSON, or generate a personalized plan with AI based on your goals and the equipment you actually have — describe your gym in plain words and OpenTrainer figures out the rest. UNDERSTAND The Training Lab analyzes your week: volume by muscle group, effort trends, recovery signals, personal records, and a body map showing what you've hit and what you haven't. YOUR DATA STAYS YOURS Full JSON export and in-app account deletion. Free while in alpha.