It is 2021 and I have the exact same problem as described here in this post from 2017
https://forum.thegamecreators.com/thread/219002#postHolder
I'm using everything from example on site, and it is working great on android.
I do use all the proper Android and iOS settings (in compiler [export to iOS] it has the right values set as well] )
if GetDeviceBaseName() = "android" or GetDeviceBaseName() = "ios"
SetAdMobTesting ( 1 ) // test
if GetDeviceBaseName() = "android"
SetAdMobDetails ("ca-app-pub-xxxxx1/501762yyyy")
else
SetAdMobDetails ("ca-app-pub-xxxxx1/627333yyyy")
endif
CreateAdvert ( 0, 0, 2, 1) // banner, left, bottom, test
endif
Help is much appreciated, because I don't know what could be wrong, since it works perfectly on Android
James