Scalin argues with your bathroom scale

Field notes

Scalin accepts manual weigh-ins or imports them through Apple Health, then applies the Hacker’s Diet method to produce a smoothed line rather than emphasizing each morning’s value. The page specifies EWMA α 0.1, a fourteen-day plateau threshold, and forecast ranges instead of single-date promises. Apple Watch entry uses the Digital Crown, while widgets can hide the actual weight. The free version retains the log and raw chart; the listed Pro plan adds the trend, forecasts, tone-based commentary, and widgets.