index.txt

:template: product-landing
:hidefeedback: header
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   :robots: noindex, nosnippet


====================================
Welcome to the Atlas Device SDK Docs
====================================

.. meta:: 
   :description: Atlas Device SDK is an offline-first, cloud-syncable database for mobile, web, desktop, and IoT apps.

.. toctree::
   :titlesonly:
   :hidden:

   Device SDKs Deprecation </deprecation>
   C++ SDK </sdk/cpp>
   Flutter SDK </sdk/flutter>
   Java SDK </sdk/java>
   Kotlin SDK </sdk/kotlin>
   .NET SDK </sdk/dotnet>
   Node.js SDK </sdk/node>
   React Native SDK </sdk/react-native>
   Swift SDK </sdk/swift>
   Web SDK </web>
   Realm Studio </studio>
   Realm Query Language </realm-query-language>
   Example Projects </example-projects>
   Get Help </help>

.. introduction::

   Atlas Device SDK is a suite of app development tools optimized for 
   data access and persistence on mobile devices. Use the SDKs to 
   build data-driven mobile, web, desktop, and IoT apps.

   .. button:: Get started with a tutorial
      :uri: https://mongodb.com/docs/atlas/app-services/get-started/

.. image:: /images/hero.png
   :alt: Atlas Device SDK landing page hero image
   :class: hero-img

The SDKs provide tools to read and write Atlas data from devices. Your app 
can sync automatically with MongoDB Atlas and other devices using Device Sync. 
You can call Atlas Functions from a device. The device persistence layer is
Realm, an embedded, object-oriented database that lets you build real-time,
offline-first applications. 

We provide SDKs for most popular languages, frameworks, and platforms. Each 
SDK is language-idiomatic and includes:

- The core database APIs for creating and working with on-device databases.

- The APIs you need for connecting to the App Services backend so you can
  make use of server-side features like :ref:`Device Sync <sync>`,
  :ref:`Authentication <users-and-authentication>`, :ref:`Functions <functions>`,
  :ref:`Triggers <trigger-types>`, and more.

.. card-group::
   :style: extra-compact
   :columns: 2

   .. card::
      :cta: Learn more about Atlas App Services
      :headline: Atlas App Services
      :icon: /images/icons/realm.svg
      :url: https://www.mongodb.com/docs/atlas/app-services/

      Discover how to sync data, define permissions, and connect to other services, including MongoDB Atlas.

   .. card::
      :headline: Swift SDK
      :url: https://www.mongodb.com/docs/realm/sdk/swift/
      :icon: /images/icons/swift_sdk.svg
      :icon-alt: Swift SDK icon

      Build applications in Swift or Objective-C for Apple platforms, including iOS, macOS, watchOS, and tvOS.

   .. card::
      :headline: Kotlin SDK
      :url: https://www.mongodb.com/docs/realm/sdk/kotlin/
      :icon: /images/icons/kotlin_sdk.svg
      :icon-alt: Kotlin SDK icon

      Build cross-platform applications for Android, iOS, and macOS with Kotlin Multiplatform (KMP).

   .. card::
      :headline: .NET SDK
      :url: https://www.mongodb.com/docs/realm/sdk/dotnet/
      :icon: /images/icons/dot_net_sdk.svg
      :icon-alt: .NET SDK icon

      Build applications that use C# and the .NET platform, including MAUI, 
      Xamarin, native Windows applications, and Unity projects.

   .. card::
      :headline: Node.js SDK
      :url: https://www.mongodb.com/docs/realm/sdk/node/
      :icon: /images/icons/node_js_logo_icon.svg
      :icon-alt: Node.JS SDK icon

      Use the Node.js SDK to build server and IoT applications in JavaScript or TypeScript.

   .. card::
      :headline: React Native SDK
      :url: https://www.mongodb.com/docs/realm/sdk/react-native/
      :icon: /images/icons/react_native_sdk.svg
      :icon-alt: React SDK icon

      Use the React Native SDK to build cross-platform applications in JavaScript or TypeScript.

   .. card::
      :headline: Java SDK
      :url: https://www.mongodb.com/docs/realm/sdk/java/
      :icon: /images/icons/android_sdk.svg
      :icon-alt: Java SDK icon

      Build Android applications in Java or Kotlin.

   .. card::
      :headline: Web SDK
      :url: https://www.mongodb.com/docs/realm/web/
      :icon: /images/icons/web_sdk.svg
      :icon-alt: Web SDK icon

      Build web applications in JavaScript or TypeScript. Access data with MongoDB queries.

   .. card::
      :headline: Flutter SDK
      :url: https://www.mongodb.com/docs/realm/sdk/flutter
      :icon: /images/icons/flutter.svg
      :icon-alt: Flutter SDK icon

      Build Flutter applications with Dart.

   .. card::
      :headline: C++ SDK
      :url: https://www.mongodb.com/docs/realm/sdk/cpp
      :icon: /images/icons/cpp_sdk.svg
      :icon-alt: C++ SDK icon

      Build applications in C++. Access data stored in realms and sync data with Atlas.