Inapp Amount allows to group users who’ve made a particular amount of in-app purchases. Based on that, you can give users more or less ads, or turn them off completely. To make this setting work correctly, please submit the purchase info via Appodeal SDK.
Appodeal.trackInAppPurchase(this, 5, "USD");
[Appodeal trackInAppPurchase:@(5) currency:@“USD”];