A messaging system in one embodiment includes a messaging app and one or more sticker extension apps configured to create a sticker image and render a sticker image that is displayed in a view hosted by the messaging app. The messaging app can launch, from a browsable view that includes one or more sticker extension apps, one or more of the sticker extension apps, and a sticker image created by one of the sticker extension apps can be communicated between the sticker extension app and the messaging app through an interprocess communication.