Android Question How to make an interstitial ad like this?

[asales]

I saw an app that shows the follow interstitial ad (see image bellow with ad: "PSafe Total Android") when closed the app.

This is a another platform, different of Google AdMob?

I want to make a similar ad, that don't cover all the screen and with a button to close it.
It's possible to make with AdMob?

Thanks in advance for any tip.