Several graphs in the Health Mate app have a second line or shaded area. Weight, heart rate and others display more than one thing on the same chart. There is no indication what this second dataset is supposed to be displaying.
Sometimes it’s a line. Is this a trend line? Rate of change? Over what period has it been averaged/integrated? Sometimes it’s a shaded area. Is this an error range?
The all charts look great, but are lacking in clarity. If I handed one in at school, all my teachers would fail it because it didn’t explain what it was showing.