I will share my experience, I just published a new application called Balloon Rush, it is a simple game with a slope, so when I added the advertisement, it started showing "Hot Ball" ads, which was strange, because I have very little content like text in the app, and it's basically the name on the splash screen. After that, I added a few keywords to the ad request, and after an hour of change, I began to receive different ads related to keywords and even more image ads opposite to text ads.
In my experience, I saw good changes adding keywords, and it definitely detected my application name or shortcuts in the application.
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