Privacy nutrition labels provide a way to understand an app's key data practices without reading the long and hard-to-read privacy policies. Recently, the app distribution platforms for iOS(Apple) and Android(Google) have implemented mandates requiring app developers to fill privacy nutrition labels highlighting their privacy practices such as data collection, data sharing, and security practices. These privacy labels contain very fine-grained information about the apps' data practices such as the data types and purposes associated with each data type. This provides us with a unique vantage point from which we can understand apps' data practices at scale.

翻译：隐私营养标签提供了一种理解应用程序关键数据实践的方法，而无需阅读冗长且难以理解的隐私政策。近期，iOS（苹果）和Android（谷歌）的应用分发平台已实施强制性要求，规定应用开发者填写隐私营养标签以突出其数据实践，例如数据收集、数据共享和安全实践。这些隐私标签包含关于应用数据实践的非常细粒度的信息，例如数据类型及每种数据类型相关的目的。这为我们提供了一个独特的视角，可以大规模地理解应用的数据实践。