Using the plugin that I linked, you can only absolutely position the ad on the screen and it’ll overlap the webview. So no, its not possible to put it in a list or to treat it as an html element. All you can do is put the ad in a fixed spot and make sure that your app can work without that space, that’s what I did with footer.
Unfortunately, if you already have a footer, there arn’t many neat options.
One option is to position it directly above the footer. To make sure that your content isn’t overlapped by it, you will have to have a
<div class='ad-space-filler'></div> on the bottom of each of your views, with its height same as the height of the ad banner.
App Exit ads are okay, I guess. Just remember : most ads are CPC (99.82% in my case), which means they pay you only when the user clicks the ad, and decide accordingly what you need to do.
Google analytics data, like any other empirical data, is fickle if the number of observations is low, and becomes more and more homogeneous as the number of observations increase. In short, the more the merrier. But you should start gaining a pretty good measure of whatever it is that you are analyzing after ~1000 observations. Let them accumulate for 10 days and you have ~10,000 observations, that’ll be better.