Most workout apps treat all gyms the same. GymPsycho doesn't. Track separate PRs per gym. Save machine settings (seat, backrest, handle). Auto-switch weight units when you travel. No other app does this. Also: science-based volume tracking (MEV/MAV/MRV), 3 taps per set, Apple Watch, Live Activity, 100% offline. No account needed. Built by a Swiss gym owner with 25+ years of lifting. No social features — just your data.