FB insterstitial


Hi! I have an app that is going well throught appstore.
Im monetizing it with admob but i have a problem that i cant move my money from admob to google ads to promote my app (because admob only pays you if you got $100).

SO i was thinking to introduce FB interstitial.
Does FB interstitial works well actually and its ok in the playstore? Because in the past i have my app went down for using deprecated apks…

Also i wanna to ask if the money you generate with FB interstitital you could use directly to generating ads for your app.