I played it and i found a training jump glitch that shows 99999999 you need to take a screenshot with the screenshot button in the app and keep it there while it counts. Works for me!
My boyfriend plays this and he's gotten the 99999999 2 times on the jump counter. So I don't think it's a glitch.
It isn't a glitch, The first time you get that training you'll get 999999, Each training has 3 outcomes- minimal, medium and max. Getting 999999 isn't a glitch but its the least likely one to happen. There is 100, 500 and 999999.