I've noticed other apps where interstitial ads show when you click on something, as opposed to my AppYet app where the interstitial shows after hitting the back button. I think the former is a less intrusive way to show these ads. A lot of time people will click "back" after reading an article and they already have planned the next article they want to click. Then just before they get a chance to click it, the interstitial pops up.
This would be a very good update if we could have more...
Option to Change Interstitial Ad Timing