Hi Jack.
I haven't encountered your issue with iReal crashes.
I have experienced other app crashes in my iPad,
The first thing I check is: how many apps are open.
(multi-finger up-swipe, long-press on an icon displayed at the bottom of the screen to bring-up the "minus" sign, then tap to close apps you aren't using. They can be re-opened from the home screen later)
)BOB