> ## Documentation Index
> Fetch the complete documentation index at: https://docs.appcharge.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

Our Mobile Checkout SDK offers two solutions, allowing publishers to choose between the Android SDK and Unity SDK, depending on their game engine:

### [Android SDK](./android/introduction)

A versatile tool designed for Android game engines, enabling seamless in-game purchase functionality. It provides a native checkout experience, allowing users to make secure purchases directly within your game. Integrate the AAR module into your Android project to support various transaction types and ensure a smooth payment process.

### [Unity SDK](./unity/introduction)

A Unity Package serves as a bridge for integrating the Android SDK into Unity projects. It simplifies the setup by automating the inclusion of the SDK file and providing a user-friendly interface. Import the Unity Package into your Unity project to enable native in-game purchases with minimal configuration.

## SDK Integration Steps

#### For Android Game Engines:

Apply the Android SDK to your project, configure it, and implement the checkout functionality as per the documentation.

#### For Unity Projects:

Import the Unity Package, which will handle the Android SDK integration and provide tools for configuring the SDK within Unity.

## Supported Browsers and Operating Systems

See a list of [supported browsers and operating systems](./supported-devices).