You can lock an iPhone/iPod Touch screen in portrait mode when using Disc Golf ScoreCard. It makes the app easier to use if when you pull your iPhone out of your bag or pocket it doesn’t keep switching between portrait and landscape. Here’s how to lock the screen in portrait mode:
1) Double tap the home button and swipe to the right:
2) Tap the rotation lock button and then double tap the home button again to return to Disc Golf ScoreCard. Your screen should now be lock in portrait mode.