Why is the workout analysis different on website and iphone app? I completed this activity today ( https://www.strava.com/activities/12726587116 ) When I look at it on my phone app, going through each lap I see:
Lap 1 6:37 /km Zone 1 Active Recovery
Lap 2 4:52 /km Zone 4 Threshold
Lap 3 6:34 /km Zone 1 Active Recovery
Lap 4 4:51 /km Zone 4 Threshold
Lap 5 6:33 /km Zone 1 Active Recovery
Lap 6 7:04 /km Zone 1 Active Recovery
Lap 7 4:51 /km Zone 4 Threshold
Lap 8 11:04 /km Zone 1 Active Recovery
Lap 9 4:45 /km Zone 4 Threshold
Lap 10 9:52 /km Zone 1 Active Recovery
Lap 11 4:50 /km Zone 4 Threshold
Lap 12 9:54 /km Zone 1 Active Recovery
Lap 13 4.44 /km Zone 4 Threshold
Lap 14 10:25 /km Zone 1 Active Recovery
Lap 15 6:37 /km Zone 1 Active Recovery
While on the web site I see this (hovering on each lap):
Lap 1 6:37 /km Z2 Endurance
Lap 2 4:52 /km Z6 Anaerobic
Lap 3 6:34 /km Z1 Active Recovery
Lap 4 4:51 /km Z6 Anaerobic
Lap 5 6:33 /km Z1 Active Recovery
Lap 6 7:04 /km Z2 Endurance
Lap 7 4:51 /km Z5 VO2 Max
Lap 8 11:04 /km Z1 Active Recovery
Lap 9 4:45 /km Z5 VO2 Max
Lap 10 9:52 /km Z1 Active Recovery
Lap 11 4:50 /km Z4 Threshold
Lap 12 9:54 /km Z1 Active Recovery
Lap 13 4.44 /km Z4 Threshold
Lap 14 10:25 /km Z1 Active Recovery
Lap 15 6:37 /km Z2 Endurance
As you can see the following laps are characterized in different zones:
1, 2, 4, 6, 7, 9, 15
Obviously one of them (site or app) is incorrect. Please fix this. As pictorial example of this discrepency I am highlighting lap 7 from the above workout below. First image is from app and second is from website.

