Preview
Description
Jern is a fast, no-nonsense workout tracker for lifters who want to log sets, track progress, and get out of the gym. - Build routines and start a workout in one tap - Log weight and reps per set, with built-in rest timers - See your estimated 1RM and volume trends per exercise - Attach a photo to any exercise for form reference - Optional AI coaching tips in the Coach tab (bring your own Gemini API key) - Optional Oura integration for recovery-aware coaching No account required. No ads. No tracking. Your training data stays on your device.
Technical Analysis
Package Overview Basic metadata
Bundle ID
UP.Jern Current Version 1.0
Minimum iOS 26.0
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