Bertrand Schmitt is the CEO of App Annie. Mobile in-app advertising is booming. In-app ad revenue across major markets are rising, and it’s_a growth that will continue as in-app advertising takes more budget from traditional mobile and online display advertising spend. For app publishers, in-app advertising has emerged as the number one way to monetize their apps. For advertisers, it offers a great way to access and acquire a highly engaged audience of app enthusiasts everywhere they go. But what we’ve seen so far only scratches the surface—there are still a handful of hurdles that need to be overcome before...

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