Now, I reached a final decision.
I make a this topic/decision in a separate or simple point look here 
According to my research
Not Allowed Apps
1. Those apps in which user is forced to click ads or watched ads without doing any work.
2. Watch and earn apps are completely illegal it may leads to suspension of your kodular,play console, ads account.
3. Those app in which user click a button and show many ads.
4.Show rewarded ads to user for giving points/money without any work.
5. Show ads to user when he open app or click exit button.
Here Is Alloweded Apps
1.If you want to make apps like app like rooter,gamezop then make sure don’t force user to see ads.
2. Show ads in app only when user something work and its complete then show a ad.
And Final step is please follow the rules and policies of kodular and ads providers.
Thanks 