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.
Ratings & Reviews
5.0
out of 5
1 Ratings
Supersets in routines. Pair exercises into a superset while you build or edit a routine, and the pairing is kept every time you start it.
Fixes
• Supersets are kept when you update a routine from a finished workout, duplicate a routine or edit it.
• On Apple Watch and the Lock Screen, logging the first exercise of a superset takes you to its partner instead of starting a rest. The rest starts once the round is done.
• The rest timer no longer gets stuck when you log a set just as the previous rest runs out.
Version 4.4.1
The developer, VASILEIOS POULOPOULOS, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
VASILEIOS POULOPOULOS
Size
55.1 MB
Category
Health & Fitness
Compatibility
Requires iOS 16.4 or later.
iPhone Requires iOS 16.4 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.