The first ad I developed for my game was an interstitial one. Only later I added a banner and today I decided to keep only this one and delete the interstitial one. Below are the reasons:
- First of all, the interstitial ad gives a really bad user experience: the ad is full screen, often asks the user to click somewhere and the close button is hided. A friend of mine showed me a very annoying ad he had when he was playing my game. To be honest if I see this sort of ad on an app I would immediately uninstall it.
- I earned 1.21$ so far. I do not have enough data to be 100% sure about my conclusion but 0.20$ are from the interstitial ad and the rest from the banner.
- A lot of uninstallations happened right after an interstitial ad was displayed.
To summarize, without interstitial ads my game will give a better user experience, will decrease the number of uninstallations and will not decrease significantly the earning.