update icon in the google play console and itunes connect

Is it possible to update the icon of the app without changing the apk and uploading a new vsersion?

I don't think there is. The icon is inside the package, afaik.

I mean the icon that displays in the page of the app inside the store

Yes, that was clear, but that's not supplied seperately as far as the Platform is concerned, or is it?

the icon is uploaded on the store and not inside the module

So then your question has nothing to do with OutSystems?

And what's the point?

The point is, if your question is not OutSystems-related, perhaps it has no place on an OutSystems-specific forum? You could easily Google your question.