Weigh-ins feed the trend-weight filter — daily fluctuations are smoothed out automatically.

Rate is a percentage of body weight per week. Targets adapt to your measured metabolism, not a formula.

The check-in re-estimates your expenditure from the last 14 days of intake and weight change (energy balance: 7 700 kcal ≈ 1 kg), then rebuilds your targets. Going over or under target never "breaks" the plan — the algorithm just learns from it.