Create an Android Webview App with Admob ads in it

Create Webview app:

Simply open web link on app open
(web link should be secret)

&

Add Google Admob (Google Ads) to app.
Ad units:
1) interstitial
2) Reward Interstitial
3) Reward
4) App open

Note: Reward = +1 as YOUR SCORE = 1++ @ on bottom of app.