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Realm Swift SDK

Use the Realm Swift SDK to develop iOS, macOS, watchOS and tvOS apps in Swift and Objective-C.

Learning Paths
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Quick Start

Minimal-explanation code examples of how to work with Realm.

See Code Examples

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Working Example App

Learn from example by dissecting a working SwiftUI client app that uses Realm with Device Sync.

Explore an Example App

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Guided Tutorial

Follow a guided tutorial to learn how to adapt the example app to create your own working Realm app.

Follow the Tutorial

What You Can Do

Use free open-source Realm as a local object store on a device. Use Device Sync to keep data in sync with your MongoDB Atlas cluster and other clients.

Essential Documentation
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Swift API Reference

Explore generated reference docs for the RealmSwift APIs.

RealmSwift Reference

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Objective-C API Reference

Explore generated reference docs for the Realm Objective-C APIs.

Realm Reference

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SwiftUI Quick Start

Get started with Realm for SwiftUI.

Explore the Quick Start

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Analytics/Telemetrics Data

Take sensor readings, push data to Atlas, and display the results in Atlas Charts or a time series collection.

Example app

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Connection State Change & Error Handling

Learn best practices around handling Sync errors and client resets.

Example app

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Offline Login and Realm Access

Log in a Device Sync user and open a synced realm offline.

Example app

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