[In-app browsers](https://support.google.com/admanager/answer/14137220) let you display web content without users having to leave the app. They are commonly found in popular social, news, search, and HTML5 game apps. This web content may include ads as a source of monetization. In-app browsers are often powered by mobile app OS components, such as Custom Tabs and `WebView`, whose default settings are not geared towards ads monetization. To maximize ad revenue performance of web content in these in-app browser environments, check out one of these solutions: - [Optimize Custom Tabs](https://developers.google.com/admob/android/next-gen/browser/custom-tabs.md.txt) - [Optimize WebView](https://developers.google.com/admob/android/next-gen/browser/webview.md.txt)