(in red) The max altitude is the maximum take off altitude, thats the elevation you where at take off. In io it reads maximum take off altitude but in android it reads max altitude . ON the lower part of your picture there is a 117, that should be your max flight altitude above take off. If you are taking off from sea level all the time it should be 0 or real low.
I am in Odessa Texas, the altitude here is 2900.So mine should say something close to 2900 But in the area pictured in red, mine just says zero. I will try to get a screen shot of my record (if I can figure out how)