One of my least favorite features of iOS is Shake to Undo. It’s one of the only ones that I just cannot understand why Apple implemented in the way it’s implemented. It’s not discoverable. It’s not intuitive (honestly). It almost always does not work correctly for me when I perform an undo.
In iOS 9, now we can disable this undesirable feature, and big thanks to TechCrunch for pointing it out.
I’ve been using iOS on and off for years now. I think I’ve intentionally used shake to undo… maybe 5 times. I’ve accidentally brought up the shake to undo prompt probably 45,000 times. In iOS 9, you can finally disable this gesture. Find the option under Settings> General > Accessibility > Shake to Undo.