Do I need a host app for an iOS 10 Messages extension?

Question

I am building a messages extension for iOS 10 and I am wondering if I am required to make a host app or can I just publish my messages extension directly on the app store?

Thanks

Answer 1

Apple:

You can use the Messages framework to create two types of app extensions: Sticker packs and iMessage apps. Both extension types can be created as standalone apps or as app extensions within a containing iOS app.

With that, you should be able to publish your extension directly on the app store.