Same idea: trend instead of daily number
Anyone who weighs in every morning knows it: two days of good eating and the scale shows a kilo more, after a sauna day one less. Water, salt, carbs and gut contents shift daily weight more than a few days of surplus or deficit. Happy Scale and Lean is law both calculate a smoothed line for that reason, so you can read where things are really heading.
Where Happy Scale shines
Happy Scale is focused on one thing: making weight loss visible and motivating. A big goal is broken into milestones, the app estimates when you will reach them and shows healthy weight ranges by BMI. It runs on iPhone, iPad and Mac with Apple chip and syncs between iPhone and iPad. The paid version is inexpensive. If that is exactly what you are looking for, Happy Scale serves you well.
Where Lean is law goes further
Lean is law is built for people who alternate between building muscle and losing fat:
- Phases: Bulk, Cut, Maintain and Diet Break, each with its own rate and a colored band in the chart. The next phase can be planned in advance.
- Rate warning: a bulk above 0.5 % or a cut above 1.0 % of your trend weight per week is flagged.
- Nutrition: logging calories and macros is free; Pro uses it to calculate your adaptive TDEE, target calories and macros for the current phase.
- Check-in: once a week, posing photos in four poses, with weekly average, rate and waist.
- Android: Lean is law is available for iPhone and Android, with Apple Health or Health Connect.
Where Happy Scale is the better choice
- You use an iPad or Mac and want to see the same data there.
- You only want to lose weight and don't want phases, macros or photos.
- The price of the paid version matters to you.
Where Lean is law is the better choice
- You are planning a lean bulk or alternate between bulk and cut.
- You use Android.
- You want weight trend, calories and progress photos in one place.
- You need an app whose data stays on the device without an account.