We are excited to announce the release of In-App Messaging:
In-app messages are banner notifications that appear inside of your app. Aside from empowering you to engage with users as they browse your app, you can also reach opted-out users, a previously unreachable audience segment.
In-app messages support all of the features supported by standard push messages, including Actions and Interactive Notifications. You can send in-app messages on their own, or you can include an associated push notification.