# Data and storage Regulate documents, URLs, and other kinds of data movement and storage. ## Discussion The system needs to know what kinds of data your app stores, provides, or consumes. Add keys to your app’s [`Information Property List`](/documentation/BundleResources/Information-Property-List) that declare your app’s data management capabilities. ## Topics ### Documents [`CFBundleDocumentTypes`](/documentation/BundleResources/Information-Property-List/CFBundleDocumentTypes) The document types supported by the bundle. [`UISupportsDocumentBrowser`](/documentation/BundleResources/Information-Property-List/UISupportsDocumentBrowser) A Boolean value indicating whether the app is a document-based app. [`LSSupportsOpeningDocumentsInPlace`](/documentation/BundleResources/Information-Property-List/LSSupportsOpeningDocumentsInPlace) A Boolean value indicating whether the app may open the original document from a file provider, rather than a copy of the document. [`NSDownloadsUbiquitousContents`](/documentation/BundleResources/Information-Property-List/NSDownloadsUbiquitousContents) A Boolean value that indicates whether the system should download documents before handing them over to the app. ### URL schemes [`CFBundleURLTypes`](/documentation/BundleResources/Information-Property-List/CFBundleURLTypes) A list of URL schemes (http, ftp, and so on) supported by the app. ### Universal type identifiers [`UTExportedTypeDeclarations`](/documentation/BundleResources/Information-Property-List/UTExportedTypeDeclarations) The uniform type identifiers owned and exported by the app. [`UTImportedTypeDeclarations`](/documentation/BundleResources/Information-Property-List/UTImportedTypeDeclarations) The uniform type identifiers inherently supported, but not owned, by the app. ### Network [`NSAdvertisingAttributionReportEndpoint`](/documentation/BundleResources/Information-Property-List/NSAdvertisingAttributionReportEndpoint) The URL where Private Click Measurement and SKAdNetwork send attribution information. [`NSAppTransportSecurity`](/documentation/BundleResources/Information-Property-List/NSAppTransportSecurity) A description of changes made to the default security for HTTP connections. [`NSBonjourServices`](/documentation/BundleResources/Information-Property-List/NSBonjourServices) Bonjour service types browsed by the app. [`CKSharingSupported`](/documentation/BundleResources/Information-Property-List/CKSharingSupported) A Boolean value that indicates your app supports CloudKit Sharing. ### Background downloads [`BAUsesAppleHosting`](/documentation/BundleResources/Information-Property-List/BAUsesAppleHosting) A Boolean value that indicates whether you use Apple’s service to host your asset packs. [`BAHasManagedAssetPacks`](/documentation/BundleResources/Information-Property-List/BAHasManagedAssetPacks) A Boolean value that indicates whether you let the system automatically manage your asset packs. [`BAAppGroupID`](/documentation/BundleResources/Information-Property-List/BAAppGroupID) The app group identifier that you share between your app and the extension that uses asset packs. [`BAInitialDownloadRestrictions`](/documentation/BundleResources/Information-Property-List/BAInitialDownloadRestrictions) The restrictions that apply to the set of assets that download immediately after app installation. [`BAMaxInstallSize`](/documentation/BundleResources/Information-Property-List/BAMaxInstallSize) The combined, maximum size, in bytes, of the non-essential assets that download immediately after app installation. [`BAManifestURL`](/documentation/BundleResources/Information-Property-List/BAManifestURL) The location URL of the app’s manifest file that contains the names and sizes of assets. [`BAEssentialMaxInstallSize`](/documentation/BundleResources/Information-Property-List/BAEssentialMaxInstallSize) The combined, maximum size of the essential assets that the system downloads before it launches your app in bytes. ### Storage [`APFiles`](/documentation/BundleResources/Information-Property-List/APFiles) Describes the files or directories the app installs on the system. [`APInstallerURL`](/documentation/BundleResources/Information-Property-List/APInstallerURL) The base path to the files or folders that the app installs. [`NSSupportsPurgeableLocalStorage`](/documentation/BundleResources/Information-Property-List/NSSupportsPurgeableLocalStorage) A Boolean value indicating whether the app continues working if the system purges the local storage. [`LSFileQuarantineEnabled`](/documentation/BundleResources/Information-Property-List/LSFileQuarantineEnabled) A Boolean value indicating whether the files this app creates are quarantined by default. [`UIFileSharingEnabled`](/documentation/BundleResources/Information-Property-List/UIFileSharingEnabled) A Boolean value indicating whether the app shares files. [`CSResourcesFileMapped`](/documentation/BundleResources/Information-Property-List/CSResourcesFileMapped) A Boolean value indicating whether the app’s resources files should be mapped into memory. [`NSDownloadsUbiquitousContents`](/documentation/BundleResources/Information-Property-List/NSDownloadsUbiquitousContents) A Boolean value that indicates whether the system should download documents before handing them over to the app. ### CoreML models [`LSBundleContainsCoreMLmlmodelc`](/documentation/BundleResources/Information-Property-List/LSBundleContainsCoreMLmlmodelc) A Boolean value indicating whether the app contains a Core ML model to optimize loading the model. ### Java [`NSJavaRoot`](/documentation/BundleResources/Information-Property-List/NSJavaRoot) The root directory for the app’s Java class files. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)