!!!!!! Powerschool app showing wrong scores !!!!!

Powerschool Phone App Not Working
A parent emailed me, concerned about her child's grade on Powerschool. When I look in my gradebook it shows a score 15 points higher than the score mom sees.
The technology department tells me there is a problem with the phone app. If you want to double check yours, log on to Powerschool on a personal computer. That should show you the correct scores.