An App Clip is a small part of an app that allows users to complete a task quickly without downloading the entire app. App Clips can be discovered in several ways, including scanning an App Clip code, tapping an App Clip NFC tag, entering an App Clip from a link sent via iMessage, or launching an App Clip from a smart App Clip banner in Safari. Siri or Apple Maps can also suggest App Clips. Once an App Clip is launched, users can complete a quick task from the app, such as renting a bike, paying for parking, or ordering food. After the task is done, users can be offered the opportunity to download the full app from the App Store.

According to Apple, App Clips are designed to be lightweight and fast, with a maximum size limit to ensure they can be downloaded quickly. Developers can configure App Clips using default App Clip links, and users can launch App Clips directly from their app.

It is important to note that "App Clips" is not spyware, but rather a legitimate feature of iOS devices.