iOS 14 brought a couple of new features I've been wanting to test. In past years I've evaluated Android's "Instant Apps" feature and of course when Apple added this with iOS 14's App Clips I had to see what was being stored.
So what are App Clips anyway? For that I'll direct you over to Apple's website here. Apple's App Clips are mini-versions of applications that a user can quickly download and interact with without installing the full version of the app. These App Clips can be distributed to users in several ways from being embedded into web pages, NFC tags, QR codes, or even by using apps like Messages or Maps.
When a user gets a notification they can download an App Clip it'll open up on their device after a brief download screen. From there they can interact with a minimal version of the application. Depending on the app, you'll get access to features the developers want you to have with obviously a big and constant incentive to download the full version of the application. Below are some screenshots of the process of finding an available App Clip (one via the Maps app and one via Safari), installing them, and using them.