Build & Publish

Build & Publish

Here you can build a new version of your app.

  • For an Android release: You can build either a test format (APK) or a production version to release it on the Google Play Store (Bundle).
  • For an iOS release: You can upload an iOS release to TestFlight.
    First, you have to fill in some important information about your app to be able to publish it on Apple's App Store and the Google Play Store, click on "Setup".


Upload an iOS release to TestFlight

1.) First upload your App Store logo, make sure that the logo is (1024 x 1024) in JPG Format.

2.) Make sure that you set up an Apple Developer Account, if you didn't check out this article to know how to.


3.) Click "Yes" after you set up your account, and a drop-down menu will appear.


4.) Next check if you enrolled with an Individual or an Organization account, if you are not sure, check out this article to know.

5.) If you choose an individual account, a drop-down menu will appear.


If you enabled the two-factor authentication in your account click "Yes" if you haven't, click "No" and you can enable push notifications by clicking "Yes", check out this article to know how to enable your app to send push notifications.

6.) If you choose an organization account, you be prompted with this screen.


7.) Make sure to invite [email protected] as an app manager in your apple developer account, the reason for that is that nandbox will finish all the technical aspects of publishing leaving you to configure the app logo and the description so that your app will be ready to go live, check out this article to know how to do that.

8.) Next, you have the App Store configuration section.


9.) Enter the team name of your Apple developer account, if you don't know what it is, check out this article.

10.) Enter the Bundle ID which is a unique identifier for your app on Apple App Store for example "com. nandbox.yourCompanyName"

11.) Finally, add your App Store name, this is the name that will appear on the App Store.

12.) When you are done, click "Save".

Make sure that you are certain of all the information you entered to avoid any rejection from the App Store, if you require any further assistance or if you have any questions, do not hesitate to reach out to us at [email protected]
When you enter all the information, click on "New Release"


This window will appear.


Select Upload an iOS version to Testflight.


Enter your version name and description and click start.

Build an Android Release

To build an Android release, upload your app icon and your notification icon, make sure your app icon is (1024 x 1024) with PNG Format, and your notifications icon is (1024 x 1024) in white color with PNG Format. Click "Save" when you finish uploading.

The package ID is a unique identifier for your app URL link on Google Play Store.
Note that this ID cannot be changed once you released a new version on the app builder.


  • Select your app, and then select either to build an Android release.

  • You will have the option to release an APK format - which is better if you want to test your app before you publish it on the Google Play Store - or as a bundle format, it is recommended to release it in a bundle format if you are going to publish it on the Google Play Store.

  • Here is the ultimate guide on how to publish your app on the Google Play Store.


  • After you release it, your app version will be displayed as follows.


Which will include all the information about your release.

You can download the APK version on your Android phone and start testing your app.

You can also restore your app configuration, copy the link to the file, download it, or delete the app release from the buttons displayed respectively.


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