> For the complete documentation index, see [llms.txt](https://docs.helix.voodoo.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.helix.voodoo.io/monetization/integrate-the-sdk/applovin-max-adapter/android-max-adapter.md).

# Android

This guide covers integrating Helix with AppLovin MAX on **Android** using Gradle.

{% hint style="info" %}

* **Minimum supported Android version:** Android 7.0 (API level 24)
* **Latest adapter version:** 4.29.3.1
* **Latest Helix SDK version:** 4.29.3
  {% endhint %}

{% hint style="info" %}
**Before you start:** complete the mediation setup first — enable Helix on your MAX ad unit in the AppLovin dashboard. See [AppLovin MAX Integration](/monetization/configure-mediations/applovin-max-integration.md).
{% endhint %}

***

## Add custom Maven repository

Add the Helix Maven repository to your Gradle configuration.

Use **one** of the following options, depending on where your project declares repositories.

{% tabs %}
{% tab title="Groovy DSL (`build.gradle`)" %}

```groovy
allprojects { 
	repositories { 
		google() 
		mavenCentral()
		maven { 
			url "https://framework.voodoo-adn.com/android/release/apps" 
		} 
	} 
}
```

{% endtab %}

{% tab title="Kotlin DSL (`settings.gradle.kts`)" %}

```kotlin
dependencyResolutionManagement { 
	repositories { 
		google() 
		mavenCentral() 
		maven { 
			url = uri("https://framework.voodoo-adn.com/android/release/apps") 
		} 
	} 
}
```

{% endtab %}
{% endtabs %}

## Add dependency

Add the Helix AppLovin adapter dependency to your **app module** (or ads module if applicable).

```groovy
dependencies { 
	// AppLovin adapter provided by Helix
	implementation "io.adn:adn-applovin-adapter:4.29.3.1"
}
```

## Sync and build

After updating Gradle configuration:

* Sync the project.
* Build the app.
* Confirm that:
  * Dependencies are resolved successfully.
  * No Gradle or dependency resolution errors occur.
  * The Helix AppLovin adapter and the Helix SDK (pulled in transitively) are included in the final APK or AAB.

## Troubleshooting tips

If dependency resolution fails:

* Confirm the repository is added at the correct level
* Ensure <mark style="color:red;">`mavenCentral()`</mark> is present
* Perform a clean sync, then rebuild
* If the build fails with "Build was configured to prefer settings repositories over project repositories", your project uses <mark style="color:red;">`FAIL_ON_PROJECT_REPOS`</mark>, the default for projects created by recent versions of Android Studio. Declare the repository in your settings file instead of <mark style="color:red;">`build.gradle`</mark>.


---

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