# Android experiments installation - Docs

1.  1

    ## Install the dependency

    Required

    Add the PostHog Android SDK to your `build.gradle` dependencies:

    build.gradle

    PostHog AI

    ```kotlin
    dependencies {
        implementation("com.posthog:posthog-android:3.+")
    }
    ```

2.  2

    ## Configure PostHog

    Required

    Initialize PostHog in your Application class:

    SampleApp.kt

    PostHog AI

    ```kotlin
    class SampleApp : Application() {
        companion object {
            const val POSTHOG_PROJECT_TOKEN = "<ph_project_token>"
            const val POSTHOG_HOST = "https://us.i.posthog.com"
        }
        override fun onCreate() {
            super.onCreate()
            // Create a PostHog Config with the given project token and host
            val config = PostHogAndroidConfig(
                apiKey = POSTHOG_PROJECT_TOKEN,
                host = POSTHOG_HOST
            )
            // Setup PostHog with the given Context and Config
            PostHogAndroid.setup(this, config)
        }
    }
    ```

3.  3

    ## Implement your experiment

    Required

    Experiments run on top of our feature flags. You can define which version of your code runs based on the return value of the feature flag:

    ```kotlin
    if (PostHog.getFeatureFlag("your-experiment-feature-flag") == "test") {
        // do something
    } else {
        // It's a good idea to let control variant always be the default behaviour,
        // so if something goes wrong with flag evaluation, you don't break your app.
    }
    ```

4.  4

    ## Run your experiment

    Required

    Once you've implemented the feature flag in your code, you'll enable it for a target audience by creating a new experiment in the PostHog dashboard.

5.  5

    ## Next steps

    Recommended

    Now that you're running experiments, continue with the resources below to learn what else Experiments enables within the PostHog platform.

    | Resource | Description |
    | --- | --- |
    | [Creating an experiment](/docs/experiments/creating-an-experiment.md) | How to create an experiment in PostHog |
    | [Adding experiment code](/docs/experiments/adding-experiment-code.md) | How to implement experiments for all platforms |
    | [Statistical significance](/docs/experiments/statistics-bayesian.md) | Understanding when results are meaningful |
    | [Experiment insights](/docs/experiments/analyzing-results.md) | How to analyze your experiment data |
    | [More tutorials](/docs/experiments/tutorials.md) | Other real-world examples and use cases |

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