---
title: "Register the application"
url: https://docs.catalyst.zoho.com/en/tutorials/dialer-mobile-app/flutter/register-app/
description: "Build a dialer application in Flutter using Catalyst Advanced I/O Functions, Data Store, and Twilio's Voice API to call customers from your sales team."
last_updated: 2026-11-04T10:10:44Z
service: All Services
type: tutorial
related_links:
  - name: "Android SDK Setup"
    url: /en/sdk/android/v2/setup/
  - name: "iOS SDK Setup"
    url: /en/sdk/ios/v2/setup/
---

# Register the application

Now, we will register the Android and iOS applications in Catalyst and fetch the configuration files. To build your Flutter app with Android or iOS as your development targets with the Flutter SDK, you will need to register your apps and fetch the property files generated by Catalyst and include them in both Android and iOS app directories. Please follow the steps below to register the mobile applications in Catalyst.

To register an Android application in Catalyst:

1. Open your project in the Catalyst console and click on the **Settings** icon in the top right corner of the screen.
![open-settings](https://catalyst-docs-development.zohostratus.in/images/tutorials/dialer-app/flutter/open-settings.webp) 

2. Navigate to **Project Settings → Developer Tools**. Click the **Android** tile.
![dev-tools](https://catalyst-docs-development.zohostratus.in/images/tutorials/dialer-app/flutter/dev-tools.webp) 

3. Provide the package name as **com.example.dialer** and the redirect URL as dialerapp and then click **Create**.
![create-package](https://catalyst-docs-development.zohostratus.in/images/tutorials/dialer-app/flutter/create-package.webp) 

4. Click **Download**. The configuration file gets downloaded to your local. 
![click-download](https://catalyst-docs-development.zohostratus.in/images/tutorials/dialer-app/flutter/click-download.webp) 

> **Note:** You can refer to [this help documentation](https://docs.catalyst.zoho.com/en/sdk/flutter/v2/setup-for-android/) to learn more about the Android setup for Flutter SDK in detail.

Similarly, to register an iOS application in Catalyst, follow the same steps as mentioned above by clicking the iOS tile. Provide the package name as  **"com.example.catalyst.dialer"**, redirect url as **"dialerapp"** and download the iOS configuration file.

> **Note:** You can refer to [this help documentation](https://docs.catalyst.zoho.com/en/sdk/flutter/v2/setup-for-ios/) to learn more about the iOS setup.