Is not great
The lines only go up and down. So if your PT or DR is recommending left and right this is not the app for you and a waste of money.No timer
It’s great but there is no timer of any kind in viewWonderful app!
Simple but extremely helpful app. Had a question and the developer replied within minutes. If you want to make the lines go left to right, just lock the screen orientation of your iPad or phone. My doctor wants me to use this for 15 seconds up/down and left/right 3x a day. This app makes it easy to incorporate it into my daily routine. Thank you!