Dear Koders,
We have had problems with our Admob account because some of our Koders have released not-complaint apps. This is why we have launched the Admob Approval process. While this issue is not resolved yet, we are continuing to work on it to come up with a permanent solution.
As a result of the issues that arose because of Admob, we have initiated a more comprehensive advertising sharing model for our Koders. We are learning from our Admob experience and applying that to other advertising networks. This will ensure that our Koders get the best access to the worlds top advertising platforms, through the Kodular platform.
From now on, all apps have to be manually reviewed by us in order to display any ad from any ad network when not installed from Google Play Store.
So, we came up with an interim solution. For the foreseeable future, and in an effort to generate enough revenue to keep Kodular for free, we will add something called fallback ads. When we have to take commission with Admob Interstitial (that 10%-20% which depends on the ad network), we will instead display an Unity Interstitial Ad with our identifer. And this applies as well to Amazon, Facebook and Leadbolt Interstitials.
Note that you won’t need an Unity Game ID to get paid. Your ads will be displayed through your Admob account, except a low percentage (commissioned ones) which will go with our Unity account. You can see a detailed explanation of this system in the first response to this topic.
At this moment, the lowest commissions are in StartApp Banner and Unity Ads Interstitial. We encourage you to use their ad network, not only because of the lower commission, but also because they have native commission (no extra ad networks will be added when using them).
The following blog entry contains more details about the issue with Google, the new system and upcoming updates and future of Kodular.
And now we have to ask you something: please support us.
We are in a critical situation. Without that revenue we won’t be able to pay servers. So, if you have really enjoyed Kodular during all this time, stay with us!
Kodular 1.4 E… will bring lots of new features, and might revolutionate App Inventor world. And it will also low down commissions quite a lot. 
Feel free to ask any questions about the new system!
We will try to be as transparent as possible, as always 
. I am using admob & startapp ads. Please check if there is any error in admob component & please fix it as soon as possible 