Testing
Consider putting the different ad networks in Test Mode when testing. (It is against the terms of service to show live ads, and more especially to click on them, on the developer’s device).
Most of the ad networks let you go into the dashboard and put the placement or game into testing mode. Unity Ads lets you register your device as a test device (which is really handy!) For AdMob, you can add a snippet of code before creating the ad to say you are a test device (but try not to ship that code).
You will, of course, want to turn test mode off before shipping the game.
If you want to know if certain ad networks work, well, your not in as much luck as you might like. AdMob never considered this.
I found that you can, however, disable specific networks by deleting specific files.
To wit:
Disable Chartboost by removing:
– Assets/Plugins/Android/Chartboost/chartboost-7.0.1.0.aar
Disable AdColony by removing:
– Assets/Plugins/Android/com.adcolony.sdk-3.3.0.aar
– Assets/Plugins/Android/com.google.ads.mediation.adcolony-3.3.0.0.aar
Disable Vungle by removing:
– Assets/Plugins/Android/com.github.vungle.vungle-android-sdk-5.3.0.aar
– Assets/Plugins/Android/com.google.ads.mediation.vungle-5.3.0.0.aar
Disable Unity Ads by removing:
– Assets/Plugins/Android/com.google.ads.mediation.unity-2.1.2.0.aar
– Assets/Plugins/Android/com.unity3d.ads.unity-ads-2.1.2.aar