I believe you’re talking about Niotron Companion showing up in your Admob Console. This happens when you test your apps using your AppId and Ad Id instead of the test ids.
When you test your app in the companion using your AdmobId, Admob will automatically recognise the app and give you a suggestion to add the app to your Admob Console, it’s usually a suggestion and users can choose to stop showing ads in the companion app and it would stop displaying ads when you’re using the companion.
Either way the app would be linked with your Admob Account thereby the revenue would still go to your Admob Account.