Apple Reveals New Developer Technologies to Foster the Next Generation of Apps

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New Ways to Reach Users with App Clips and Widgets

With App Clips, users have a fast and easy way to discover apps through new visual indicators called App Clip codes, as well as through NFC, shared links, and more. App Clips launch within a few seconds, immersing the user into a piece of the full app experience and giving developers a fun, new way to reach customers exactly when their app is most useful. Once inside the App Clip, users can easily install the full app with a single tap.

Widgets have also been redesigned to be more helpful and give users timely information at a glance. With widgets on the Home Screen pages, users can experience the developer’s widget every time they look at their device. And with a new SwiftUI™ API, developers can use the same code to build a widget for iOS, iPadOS®, and macOS®.

Greater Access to Apple Platforms

This year, Apple is providing developers with even more ways to deeply integrate their apps into core platform features in order to deliver powerful functionality in a way that also protects user privacy and security. The new Find My network accessory program lets third-party device makers take advantage of a network with hundreds of millions of devices, while continuing to offer end-to-end encryption so only the user can see the location of their item. HomePod™ also has a new program to integrate third-party music services. Email and browser app developers can offer their apps as default options, selectable by users. And Safari® for Mac® is adding support for the popular WebExtensions API used by Chrome, Firefox, and Edge, making it easy for extension developers to work with Safari and to distribute through the Mac App Store.

Managing and Growing Developer Businesses

A new StoreKit tool in Xcode® lets developers simulate subscription setup, in-app purchases, and even refunds — all locally on their Mac. There is also a new StoreKit testing framework that makes it easy for developers to automate testing of purchase workflows. New App Store server notifications for subscription renewal events and customer refunds help developers better manage the customer experience in their apps. And in addition to shared family app purchases, the App Store now supports Family Sharing for subscriptions and in-app purchases. This is great for developers who offer content for the whole family to enjoy.

It’s easier than ever for developers to make their games shine on Apple’s platforms using the latest updates to the beautifully redesigned Game Center. Updates include recurring leaderboards, a new in-game dashboard, and enhanced recommendations through Friends Playing, where users can discover games that are popular with their Game Center friends.

Redesigned Xcode

Xcode is at the center of all development on Apple’s platforms, and with Xcode 12, it has a fresh new look to match macOS Big Sur. New document tabs make opening multiple files fast and lightweight to support interface files, and logs and project files each open in their own tab. Navigator fonts now match the system size, or can be set to small, medium, or large. And Xcode 12 builds macOS Universal apps by default to support new Macs with Apple silicon.

New SwiftUI Capabilities

SwiftUI introduced developers to a modern UI framework that made it more intuitive than ever to build sophisticated app UIs. This year, new life cycle APIs let developers write an entire app in SwiftUI and share that code across all Apple platforms. Developers who have already started with SwiftUI will easily be able to add new features to their existing code, and a new Lazy API ensures enormous data sets will offer great performance.

More Customizable Apps with Mac Catalyst

Debuting alongside macOS Catalina at WWDC 2019, Mac Catalyst™ made it easy for developers to bring their iPad® apps to the Mac. With macOS Big Sur, Mac Catalyst apps automatically inherit the spacious new design, while giving developers powerful new APIs and greater control over the behavior of their apps. And now developers can choose to keep their Mac app scaled at a resolution to match their iPad app, or take total control of their Mac interface to create a truly custom Mac experience. Developers can distribute their Mac Catalyst apps to customers in 175 countries on the Mac App Store, and let customers easily enjoy apps and in-app purchases across Mac, iPhone®, and iPad with universal purchase.

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An Online App Store Lab and New App Store Review Processes

During WWDC20, Apple is also launching an online version of the App Store lab to further support the Apple developer community across all of its platforms. In the past, the in-person App Store lab has helped inform and prioritize new App Store features and capabilities, as well as updates to App Store policies. This year, developers are encouraged to share their feedback at the virtual lab or through an additional survey channel that will collect submissions through June 26. The survey, now in its fourth year, reaches half a million developers and represents a critical pathway of feedback for improvements leading to App Store developer services such as TestFlight® public links and the ability to respond to customer reviews.

Apple will also create additional channels for developers to share feedback during new developer forums that will occur throughout the coming year. In these forums, developers are encouraged to share their suggestions, large and small, so that Apple may continue to implement changes and improve the App Store experience for the entire developer community.

Additionally, two changes are coming to the app review process and will be implemented this summer. First, developers will not only be able to appeal decisions about whether an app violates a given guideline of the App Store Review Guidelines, but will also have a mechanism to challenge the guideline itself. Second, for apps that are already on the App Store, bug fixes will no longer be delayed over guideline violations except for those related to legal issues. Developers will instead be able to address the issue in their next submission.

New Levels of Privacy Transparency

A transparent overview of an app’s privacy practices is key to building trust with potential users. Developers now have the opportunity to detail their app’s privacy practices right in the App Store for users to review, including the types of data the apps might collect, whether that data is shared with third parties, and the option for users to opt out.

Other Developer Features

• ARKit™ 4 introduces new ways to capture information about the real world using a new Depth API that is designed to work with the LiDAR sensor in iPad Pro®, enabling entirely new types of apps, such as on-site architecture, design, landscaping, and manufacturing.
• Machine learning development is easier and more extensive with additional tools in Core ML® for model deployment and encryption, new templates and training capabilities in Create ML™, and more APIs for vision and natural language.
• PencilKit now features Scribble, which makes it easy to create apps with text entry fields that users can write in with Apple Pencil®. Developers will also have access to stroke data using PencilKit, all while seamlessly handling both Apple Pencil input and system touch gestures.
• Swift® Package Manager adds support for resources to easily share Asset Catalog bundles and localizations. And new open source packages for Numerics, ArgumentParser, and System make Swift a great language for more use cases.
• TestFlight now supports up to 100 team members for fast build distribution.
• AirPods® Motion API gives developers access to movement data in real time.
• Developers can now enable users to upgrade existing third-party app accounts to Sign in with Apple accounts.

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