---
title: "Android App SDK"
slug: "s3suite94-android-app-sdk"
updated: 2026-10-27T18:42:04Z
published: 2026-10-27T18:42:04Z
canonical: "docs.onespan.com/s3suite94-android-app-sdk"
---

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

# Android App SDK

Use the setCustomDeviceID() function to create a custom device ID. For an example, refer to the Tutorial App code. To test this functionality, set the following value to true in the TutorialAppPlus class.

```plaintext
const val useCustomDeviceID = true
```

Then the following code sets the device ID:

```plaintext
DeviceIDUtil.setCustomDeviceID("RP_CUSTOM_DEVICE_ID")
```