Why diet apps often don't suit bodybuilders
Most weight loss apps reward every gram lost. For a bodybuilding cut that is the wrong logic: lose weight too fast and you lose more muscle and strength, and training suffers. A cutting app therefore has to do one thing above all: tell you if you are going too fast.
How to track your cut with Lean is law
Start a phase. You create a cut with a rate in percent of your trend weight per week and, optionally, an end date or goal weight. The phase appears as a blue band in the chart.
Trend instead of daily value. In a cut especially, the scale can stand still for days or jump up after a salty meal. Lean is law smooths your readings into the trend and calculates the weekly rate from it. On the home screen you see right away whether you are in the target range.
Adjust calories when needed. With Pro, the app calculates your actual expenditure from intake and trend (adaptive TDEE) and from that the target calories for your chosen rate. Lean is law sets protein to 2.0 g per kg by default, adjustable from 1.6 to 2.4 g.
Plan breaks. Longer cuts benefit from a pause. A diet break phase keeps your weight within a corridor; with Pro the app warns you early if the trend is about to leave the corridor within the next 14 days. You log individual refeeds as a marker or experiment and, with Pro, see the before-and-after evaluation.
Progress the scale doesn't show
In a late cut the scale tells you the least. The weekly check-in with posing photos in front, back, side and lat spread shows what is really changing. With Pro you put the same poses from two dates side by side and record body measurements such as waist.
Who this is for
For hobby bodybuilders and anyone who wants to lose fat in a controlled way after a bulk. If you only lose weight toward a goal weight, without bulk and cut cycles, a simpler scale app will do.