Time Trainer app not available in App Store

Hello,
I wanted to download the Time Trainer app from the Apple Store but I could not find it.
Also in justinguitar.com when you click on the app logo you get the message
404

OOPS! WE CAN’T FIND THE PAGE YOU’RE LOOKING FOR.

Is the app not available anymore?
Thanks!

It’s there, called “Time Trainer Metronome”. It’s an iPhone app though, so if you’re searching on an iPad you’ll need to select iPhone apps in the app store.