Atlas Device SDK for Swift enables you to build iOS, macOS, tvOS, and watchOS applications using either the Swift or Objective-C programming languages. This page details how to install the SDK in your project and get started.
Before getting started, ensure your development environment meets the following prerequisites:
Your project uses an Xcode version and minimum OS version listed in the OS Support section of this page.
Reflection is enabled in your project. The Swift SDK uses reflection to determine your model's properties. Your project must not set SWIFT_REFLECTION_METADATA_LEVEL = none, or the SDK cannot see properties in your model. Reflection is enabled by default if your project does not specifically set a level for this setting.
You can use SwiftPM, CocoaPods, or Carthage to add the Swift SDK to your project.
The SDK uses Realm Core database for device data persistence. When you install the Swift SDK, the package names reflect Realm naming.
In Xcode, select File > Add Packages....
Copy and paste the following into the search/input box.
https://github.com/realm/realm-swift.gitIn the options for the realm-swift package, we recommend setting the Dependency Rule to Up to Next Major Version, and enter the current Realm Swift SDK version . Then, click Add Package.
Changed in version 10.49.3: Instead of adding both, only add one package.
Select either RealmSwift or Realm, then click Add Package.
If you use Swift or Swift and Objective-C APIs, add RealmSwift.
If you use only Objective-C APIs, add Realm.
To use the Privacy Manifest supplied by the SDK, build RealmSwift as a dynamic framework. If you build RealmSwift as a static framework, you must supply your own Privacy Manifest.
To build RealmSwift as a dynamic framework:
In your project Targets, select your build target.
Go to the General tab.
Expand the Frameworks and Libraries element.
For the RealmSwift framework, change the Embed option from "Do Not Embed" to "Embed & Sign."
Now, Xcode builds RealmSwift dynamically, and can provide the SDK-supplied Privacy Manifest.
If you are installing with CocoaPods , you need CocoaPods 1.10.1 or later.
On the command line, run pod repo update to ensure CocoaPods can access the latest available Realm versions.
If you do not already have a Podfile for your project, run pod init in the root directory of your project to create a Podfile for your project. A Podfile allows you to specify project dependencies to CocoaPods.
Add the line pod 'Realm', '~>10' to your main and test targets.
Add the line use_frameworks! as well if it is not already there.
When done, your Podfile should look something like this:
# Uncomment the next line to define a global platform for your project# platform :ios, '11.0'target 'MyDeviceSDKProject' do# Comment the next line if you don't want to use dynamic frameworksuse_frameworks!# Pods for MyDeviceSDKProjectpod 'Realm', '~>10'target 'MyRealmProjectTests' do inherit! :search_paths # Pods for testing pod 'Realm', '~>10'endendAdd the line use_frameworks! if it is not already there.
Add the line pod 'RealmSwift', '~>10' to your main and test targets.
When done, your Podfile should look something like this:
platform :ios, '12.0'target 'MyDeviceSDKProject' do # Comment the next line if you don't want to use dynamic frameworks use_frameworks! # Pods for MyDeviceSDKProject pod 'RealmSwift', '~>10'endFrom the command line, run pod install to fetch the dependencies.
CocoaPods generates an .xcworkspace file for you. This file has all of the dependencies configured. From now on, open this file -- not the .xcodeproj file -- to work on your project.
If you are installing with Carthage , you need Carthage 0.33 or later.
Add the SDK as a dependency by appending the line github "realm/realm-swift" to your Cartfile.
You can create a Cartfile or append to an existing one by running the following command in your project directory:
echo 'github "realm/realm-swift"' >> CartfileFrom the command line, run carthage update --use-xcframeworks to fetch the dependencies.
Carthage places the built dependencies in the Carthage/Build directory.
Open your project's xcodeproj file in Xcode. Go to the Project Navigator panel and click your application name to open the project settings editor. Select the General tab.
In Finder, open the Carthage/Build/ directory. Drag the RealmSwift.xcframework and Realm.xcframework files found in that directory to the Frameworks, Libraries, and Embedded Content section of your project's General settings.
Drag Realm.xcframework and RealmSwift.xcframework (if using) to the File Navigator of your Xcode project. Select the Copy items if needed checkbox and press Finish.
If using the Objective-C API within a Swift project, we recommend you include both Realm Swift and Realm Objective-C in your project. Within your Swift files, you can access the Swift API and all required wrappers. Using the RealmSwift API in mixed Swift/Objective-C projects is possible because the vast majority of RealmSwift types are directly aliased from their Objective-C counterparts.
Tip Atlas Device SDK and RealmThe SDK uses Realm Core database for device data persistence. When you import the Swift SDK, the package names reflect Realm naming.
Add the following line at the top of your source files to use the SDK:
The SDK should only add around 5 to 8 MB to your app's download size. The releases we distribute are significantly larger because they include support for the iOS, watchOS and tvOS simulators, some debug symbols, and bitcode, all of which are stripped by the App Store automatically when apps are downloaded.
If you have build issues after using one of these methods to install the SDK, see our troubleshooting guidelines for information about resolving those issues.
ImportantThere are special considerations when using the SDK with tvOS. See Build for tvOS for more information.
Changed in version 10.50.0: Minimum required Xcode version is 15.1
Supported OS
Realm
Atlas App Services
iOS 12.0+
X
X
macOS 10.14+
X
X
tvOS 12.0+
X
X
watchOS 4.0+
X
visionOS 1.0+
X
X
Changed in version 10.50.0: Removed support for Xcode 14.
Swift SDK version 10.50.0 drops support for Xcode 14. For v10.49.3 and earlier, these Xcode 14 requirements apply:
Xcode version 14.1 or higher.
When using Xcode 14, a target of iOS 11.0 or higher, macOS 10.13 or higher, tvOS 11.0 or higher, or watchOS 4.0 or higher.
The Swift SDK supports Swift's concurrency-related language features. For best practices on using the Swift SDK's concurrency features, refer to the documentation below.
Starting with Realm Swift SDK Versions 10.15.0 and 10.16.0, many of the Realm APIs support the Swift async/await syntax. Projects must meet these requirements:
Swift SDK Version
Swift Version Requirement
Supported OS
10.25.0
Swift 5.6
iOS 13.x
10.15.0 or 10.16.0
Swift 5.5
iOS 15.x
If your app accesses Realm in an async/await context, mark the code with @MainActor to avoid threading-related crashes.
For more information about async/await support in the Swift SDK, refer to Swift Concurrency: Async/Await APIs.
The Swift SDK supports actor-isolated realm instances. For more information, refer to Use Realm with Actors - Swift SDK.
Changed in version 10.49.3: Build RealmSwift as a dynamic framework to include the Privacy Manifest.
Apple requires apps that use RealmSwift to provide a privacy manifest containing details about the SDK's data collection and use practices. The bundled manifest file must be included when submitting new apps or app updates to the App Store. For more details about Apple's requirements, refer to Upcoming third-party SDK requirements on the Apple Developer website.
Starting in Swift SDK version 10.46.0, the SDK ships with privacy manifests for Realm and RealmSwift. Each package contains its own privacy manifest with Apple's required API disclosures and the reasons for using those APIs.
You can view the privacy manifests in each package, or in the realm-swift GitHub repository:
Realm: https://github.com/realm/realm-swift/blob/master/Realm/PrivacyInfo.xcprivacy
RealmSwift: https://github.com/realm/realm-swift/blob/master/RealmSwift/PrivacyInfo.xcprivacy
To include these manifests in a build target that uses RealmSwift, you must build RealmSwift as a dynamic framework. For details, refer to the Swift Package Manager Installation instructions step (Optional) Build RealmSwift as a Dynamic Framework.
The Swift SDK does not include analytics code in builds for the App Store. The SDK does not log into Atlas on its own behalf.
If you write an app that uses any App Services functionality, such as initializing an App client to:
You may need to add additional disclosures to your app's privacy manifest detailing your data collection and use practices when using these APIs.
For more information, refer to Apple's Privacy manifest files documentation.
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