---
title: "Nok Nok Utility Apps"
slug: "s3suite94-nok-nok-utility-apps"
updated: 2026-10-27T18:42:23Z
published: 2026-10-27T18:42:23Z
canonical: "docs.onespan.com/s3suite94-nok-nok-utility-apps"
---

> ## 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.

# Nok Nok Utility Apps

## Introduction

To incorporate FIDO authentication into a Federated identity provider, Nok Nok provides adapters for many popular Federation Servers. Please contact [Nok Nok Customer Support](mailto:support@onespan.com) for more information.

The Nok Nok S3 Suite contains 2 utility apps to assist in your Federation integration. Both are described here:

- nnlfedapp implements a Federated Credential Management Page
- nnlsignin implements a Sign-in Page for your end users.

These two utility apps use the Nok Nok Web App SDK to perform various operations. You can configure how the Web App SDK behaves for these utility apps by creating the nnlapp_config object of type Main. See [Utility App Configuration](/dpoa/docs/s3suite94-utility-app-configuration) for more information.

You can choose to use your own strings and images in these utility apps, and modify the style of their user interface by editing a JSON UI Configuration file. See [App UI Customization](/dpoa/docs/s3suite94-using-customize-the-ui-in-the-app-sdk-using-json) for more information.