A little RTB Dictionary: standard full-screen banner vs interstitial banner

Q: What is the difference between a “standard full-screen banner ad” and an “interstitial banner ad”?

A: standard full-screen banner is the most common type of banner ad, appearing in an app after an event (such as after completing a level in a mobile game or after editing a photo in a mobile app). This banner ad can be closed immediately or skipped without any waiting time.

An interstitial banner ad, on the other hand, is displayed between events or actions in an app and runs for a short duration before allowing the user to close or skip the ad.

<source: Pocketmath>