Help users express themselves in richer ways by providing stickers for download on the App Store for iMessage.
Sticker Pack App
Users can tap to send stickers in a thread, adjust their size, or place them on top of bubbles, other stickers, and photos. There’s no need to write code — simply drag your images into Xcode. Sticker packs can be listed in the Stickers category and relevant Stickers subcategories on the App Store for iMessage.
Sticker Pack Extension
If you have an iOS app, you can bundle it with a sticker pack or an iMessage extension. The sticker pack is listed on the App Store for iMessage in the same category and with the same description as your iOS app on the App Store. Users who download your iOS app will automatically see the sticker pack in iMessage.
Users can share content, edit photos, play games, collaborate with friends, and more within a custom interface that you design.
Standalone iMessage App
Your app can include stickers, text, video, and audio. You can also use code to add functionality such as Apple Pay and in-app purchase. Choose to list your app in the Stickers category or another relevant category on the App Store for iMessage.
An iMessage extension can include the same features as a standalone iMessage app, and allow users to access features of your iOS app within Messages. Your iMessage app will be listed on the App Store for iMessage in the same category and with the same description as your iOS app on the App Store.
Customers can use Business Chat to engage with your business within Messages. Find how to get started and help customers resolve issues, schedule appointments, make purchases, or make payments with Apple Pay.
Building Apps for iMessage
Download Xcode. Get the latest version of Xcode, which includes the iOS SDK and the tools you need to build, test, and submit your app to the App Store for iMessage.
Learn about the Messages framework. Find technical details on the Messages framework, which you’ll use to create sticker packs and iMessage apps.
Check the Guidelines. Learn about considerations for extensions and stickers in the App Store Review Guidelines. All submitted apps are reviewed based on this set of technical, content, and design criteria.
Getting Ready to Submit
Once you’re ready, use App Store Connect to test your app, prepare your product page, and submit. TestFlight in App Store Connect lets you distribute beta versions of your apps for valuable feedback. You can invite up to 10,000 testers using just their email address or a public link.
App Icon. Create and upload two sizes of your icon: one for the App Store for iMessage, and one for the App Store for iPhone and iPad. Download design templates to help create your icon in the required sizes from Human Interface Guidelines: Resources.
App Name, Subtitle, and Description. You can use the terms iMessage and Stickers in your app name, subtitle, or description. If you use these terms, don’t repeat them in your keywords, and vice versa.
Keywords. Carefully choose your keywords to ensure your app is easily discoverable in App Store search. Keywords are limited to 100 characters total, with words separated by commas and no spaces.
Screenshots. Showcase the iMessage experience by uploading up to five screenshots per localization on your app’s version page in My Apps. When showing conversations in Messages, make sure the information and accounts you display are not real. Do not display phone numbers.
App Preview. Your app preview footage demonstrates the features, functionality, and UI of your app. For iOS apps with iMessage or sticker extensions, you can show both the iOS app experience and the iMessage app experience. Do not show the Home screen or the transition from the app to the extension. App previews are displayed on the App Store for iPhone and iPad and are not displayed on the App Store for iMessage.
Category. The App Store for iMessage shows apps browsable by primary categories. The Stickers category appears at the top of the category list and also contains subcategories. This category is only available to standalone sticker pack apps and iMessage apps. You can choose Stickers as the primary category and one Stickers subcategory.
Categories for iMessage or sticker pack extensions are taken from the corresponding iOS app and used on the App Store for iPhone, iPad, and iMessage. iOS apps with iMessage or sticker pack extensions can’t choose the Stickers category.
iMessage apps are available on devices running iOS 10 or later. However, the content that your app generates will be sent to, and can be viewed on, macOS and watchOS devices.
If you plan to make your sticker pack available for purchase, you’ll need to set up your tax and banking information in App Store Connect. To do so, sign in to App Store Connect with the Apple ID you used to enroll in the Apple Developer Program. You’ll also need to request and accept the iOS Paid Applications agreement. This is not required for free sticker packs.
For details, see App Store Connect Help.