Apple’s iOS and iPadOS 27 release notes identify four accepted launch screen keys: UILaunchStoryboardName, UILaunchStoryboards, UILaunchScreen, and UILaunchScreens.
Symptom: An app built with the iOS 27 SDK may be rejected if its submitted app bundle has no accepted launch screen configuration.
Fastest fix: Check the final app’s Info.plist, confirm every submitted app target is covered, then validate a fresh Archive and test a cold launch.
This guide is for independent developers moving an existing app to the iOS 27 SDK: use the checks below to verify its launch screen declaration and build output.
It also helps developers using Storyboards, SwiftUI, or a programmatic interface determine what their project needs to declare.
If you own a remote Mac or CI release process, use the same checks on the environment that creates the submission Archive.
Last updated October 20, 2026. The requirement and accepted keys are checked against Apple’s TN3208 launch screen guidance and current Apple Developer Releases. Check Apple’s current release information again before submitting; no specific requirement start date is stated here.
What exactly does the iOS 27 launch screen requirement apply to?
Apple’s requirement is tied to the SDK used to build the app: an iOS or iPadOS app built with the 27.0 SDK or later must include an accepted launch screen configuration. Apple says builds without one will be rejected once the App Store begins accepting apps built with the 27.0 SDK. The release notes do not establish a specific start date in this guide, so don’t plan around an assumed deadline.
Keep three version concepts separate:
- SDK version is the development kit used to compile and link your app. This is the version relevant to the stated requirement.
- Minimum deployment target determines the oldest iOS or iPadOS version your app declares support for. It is not a substitute for checking which SDK built the app.
- The user’s operating system version is the version installed on a particular device. It does not tell you which SDK created the submitted build.
The practical decision is straightforward: if the build you intend to submit uses SDK 27.0 or later, check for an accepted launch screen configuration in that build. If your current production version was built with an older SDK, this particular announcement does not say that all such existing builds immediately become invalid. It is still sensible to verify the next build before switching SDKs.
For the Xcode and SDK versions installed on your build machine, consult Apple’s Xcode release notes and Developer Releases page. Record what you actually used; don’t infer the SDK from a project’s deployment target or from the version of Xcode shown in an old CI log.
Which configuration declaration should pass?
Apple identifies four accepted keys for launch screen configuration. The right one depends on how your app defines its launch screen; don’t add several keys indiscriminately just to make a name appear in a search result.
UILaunchStoryboardNameidentifies a launch storyboard by name.UILaunchStoryboardsdescribes launch storyboard configuration.UILaunchScreenprovides launch screen configuration in the property list.UILaunchScreensprovides launch screen configuration using the plural key.
Use Apple’s Xcode launch screen configuration documentation to select an approach that matches your project, and its Information Property List guidance to understand how Xcode manages app properties. A SwiftUI or programmatic app still needs an accepted configuration in the built app when the SDK rule applies; having a first screen implemented in code is not proof that the required declaration is present.
First check: Inspect the effective build settings
Open the project in the Xcode version you plan to use, select the app scheme and the configuration used for distribution, then inspect the target’s build settings and Info settings. Xcode may generate or process the final property list from project settings, a supplied plist file, or both.
That distinction matters. A repository can contain a plist with a launch screen key while the app target being archived uses a different file or build configuration. Conversely, a generated plist may include a key even though you cannot find it in the file you expected. The source project is useful for locating a likely problem; it is not final evidence that the submitted bundle is configured correctly.
Does the declaration cover every app you will submit?
A launch screen setting belongs to a particular build product, not automatically to every product in your repository. Before archiving, list the iOS and iPadOS app targets that can be submitted, including separate branded apps or app variants. Then check the configuration used for each distributable app.
Use this target-coverage check:
- [ ] Identify the scheme and app target used to create each submitted app.
- [ ] Check the distribution configuration, not only Debug.
- [ ] Compare settings across configurations that produce distinct app bundles.
- [ ] Treat the main app, extensions, and test targets as separate products when checking project settings. Don’t assume that a setting on one target proves another target is covered.
- [ ] If a target is never submitted as an app, record that distinction rather than treating it as a covered submission.
The target that matters is the app bundle you intend to distribute. An extension or test target may have its own build settings, but its configuration should not be mistaken for the main app’s. Likewise, a correct setting on one app target says nothing about a second app target built from the same project.
How should you compare source checks, Archives, and startup tests?
Choose the check that answers the question you are trying to resolve. Source inspection is quick, but it cannot prove what made it into the product. Archive inspection confirms the built app’s property list, while a cold launch checks visual behavior that a plist inspection cannot establish.
| Check option | Best decision dimension | What counts as evidence | What it cannot prove |
|---|---|---|---|
| Project or build-setting inspection | Is the intended target configured? | Target, configuration, and effective setting recorded | That the setting reached the app bundle |
| Archive app-bundle inspection | Is an accepted key in the actual built app? | The app’s Info.plist from the Archive |
That the screen renders or transitions well |
| Cold launch on a simulator or device | Does the screen behave acceptably? | Repeatable observation tied to the build | That every other app target or configuration is covered |
Use all three for a release candidate built with SDK 27.0 or later. If you’re only locating a likely configuration issue, start with project settings; before submission, don’t use that first check as a replacement for inspecting the Archive and running the app.
Archive inspection: Verify the app bundle’s property list
An Xcode Archive contains the built app as well as archive-level metadata. Inspect the app bundle’s property list, because that is the configuration packaged with the app, rather than relying only on Xcode’s settings screen.
After creating the Archive, set APP_PATH to the built app inside it and print its property list:
APP_PATH="/path/to/MyApp.xcarchive/Products/Applications/MyApp.app"
plutil -p "$APP_PATH/Info.plist"
Check the output for at least one applicable accepted key: UILaunchStoryboardName, UILaunchStoryboards, UILaunchScreen, or UILaunchScreens. If the output is long, narrow the display to those names:
plutil -p "$APP_PATH/Info.plist" | grep -E 'UILaunchStoryboardName|UILaunchStoryboards|UILaunchScreen|UILaunchScreens'
If the command prints no matching line, don’t treat the Archive as passed. Confirm that APP_PATH points to the main app that will be submitted, then inspect the scheme, target, build configuration, and generated plist behavior. Apple’s Xcode distribution and Archive guidance explains the role of the Archive in preparing an app for distribution.
If you inspect an exported IPA instead, first extract it into a temporary directory and locate the app bundle within the extracted Payload directory. Then run the same plutil -p check on that app’s Info.plist. Avoid editing an old Archive in place and calling it a new result: fix the project or build configuration, create a fresh Archive, and inspect that new artifact.
FAQ: Pre-submission launch screen checks
Does every app built with the iOS 27 SDK need a launch screen configuration?
Apple’s stated requirement applies to iOS and iPadOS apps built with the 27.0 SDK or later. If a qualifying build lacks an accepted launch screen configuration, Apple says it will be rejected once App Store Connect begins accepting apps built with that SDK. This does not mean every existing app built with an older SDK must immediately be rebuilt.
Which Info.plist keys count for the iOS 27 launch screen requirement?
Apple lists UILaunchStoryboardName, UILaunchStoryboards, UILaunchScreen, and UILaunchScreens as accepted launch screen configuration keys. Confirm which configuration matches your project and Apple’s current documentation. Check the processed Info.plist inside the app you will submit; a key in a source plist or build setting alone does not prove it reached the final bundle.
How can I check the launch screen configuration in an Xcode Archive?
Open the .xcarchive bundle and inspect Products/Applications/YourApp.app/Info.plist, not only the Archive’s outer metadata. Use plutil -p to print the app’s property list and look for an accepted launch screen key. Record the archive path, build configuration, Xcode version, and SDK so you can connect the result to the exact build you plan to distribute.
Should I test the launch screen in a simulator after adding its configuration?
Yes. A recognized key proves that a configuration is present; it does not prove the launch screen looks correct or transitions cleanly into your app’s first screen. Run a cold launch on a relevant simulator or device, check the initial appearance and layout, and repeat after creating a fresh Archive. Keep the visual result tied to that build.
Startup validation: Confirm appearance and transition
The key proves configuration presence, not visual acceptance. Launch screens appear before your app’s normal interface is ready, so a declaration can exist while the displayed content, layout, or transition still feels broken. Check the screen on the simulator or device relevant to the release, then compare it with the first screen the app presents after launch.
Start with a genuine cold launch, not only a navigation path that returns to an already running app. Look for an unexpected blank screen, stretched or misplaced content, a flash between launch content and the app’s first view, or imagery that conflicts with the initial interface. Apple’s launching design guidance describes the purpose and design considerations for launch experiences. If the appearance is unexpected, use Apple’s TN3118 launch screen debugging notes to investigate.
A successful visual check should be associated with the build you actually inspected. If you change the launch screen configuration, asset catalog, target settings, or build configuration after the test, create a fresh Archive and repeat the check. The old Archive is evidence about the old build only.
Submission evidence: Keep a reproducible acceptance record
Keep a compact record that lets you or a teammate reproduce the acceptance decision. It should identify the candidate build, not simply state “launch screen checked.” This is especially important when local development and CI use different Xcode installations or build configurations.
- [ ] Record the Xcode version and SDK used for the Archive; verify release status in Apple’s Developer Releases and Xcode release notes.
- [ ] Record the app scheme, submitted app target, and distribution configuration.
- [ ] Save the Archive path or other build identifier, then note which accepted key you found in the app bundle’s
Info.plist. - [ ] Record the result of the cold-launch check and the simulator or device context used.
- [ ] If the configuration was missing or the app failed to build, fix the cause and create a new Archive. Do not reuse the previous Archive’s result as proof that the corrected build passed.
- [ ] Recheck Apple’s release notes before submission for changes to the requirement or its acceptance timing.
This record helps distinguish a missing source setting from a build that failed to carry the setting into its app bundle. It also makes it easier to identify stale evidence after a new Archive is created. For an iOS Archive and export acceptance workflow, use the same principle: connect each check to the exact artifact you plan to distribute.
Remote Mac builds: Apply the same acceptance checks
Run the checks on the machine that produces the release artifact. If a remote Mac or CI runner creates your Archive, the relevant evidence is the SDK, target settings, app bundle, and startup result from that build environment—not a separate developer machine’s project view. Keep the generated Archive accessible long enough to inspect it and compare it with the build you submit.
A remote Mac can be useful if your current workflow has no Mac that can run the required Xcode toolchain, or if you need a Mac available for release builds without buying one for occasional use. It does not remove your responsibility to choose the correct target, protect signing credentials, test the app, or review the final submission. If you are evaluating whether a hosted Mac fits your iOS development workflow, compare access, handoff, and security needs with the way your team currently builds and releases.
If you already have a Mac that can reliably create and inspect the Archive, using it may be simpler than adding a remote environment. If you need a temporary build or acceptance environment and don’t want to buy hardware just for that work, compare the available Mac plans against your expected usage before deciding.
For this launch screen check, the weak alternative is to trust a project setting, validate only a locally generated Archive, or test an older build while CI produces a different artifact. Those choices leave gaps between configuration, submission output, and the screen users see. If you lack a Mac that can run the required Xcode workflow, renting a Mac from KVMFLUX can give you a place to create and inspect a real Archive; first confirm that remote access, your signing workflow, and artifact handoff suit your release process.
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