All content in this course uses:

Publishing for iOS

Unity includes a built-in publishing feature that allows you to publish to various popular platforms in an easy and efficient way. You can publish the same application to multiple platforms, provided the application design takes into account each platform’s unique hardware and software requirements. In this tutorial we’ll explore publishing to iOS-based devices.

For this tutorial, you will need an Apple iOS developer account. You’ll also need to install the iOS development modules in Unity

Open the Unity Hub and locate your installs (

 Select the three dots at the top-right corner of your working installation and select 

 and accept the terms and conditions. Wait for the installation to finish. 

Installing with the Unity Hub

There are a few steps you need to take to set up your app before you can publish from Unity. iOS apps need to have a certificate assigned to a bundle identifier, which in turn needs to be assigned to the app. In the steps below, we’ll set up this certificate and identifier.

Select the Certificates section and then click on the 

 Use Keychain Access on your Mac to generate a certificate file. Make sure you use the same email address as your Apple ID when generating the certificate. Upload the certificate file (

 Download the new certificate and keep it safe (

 On the next page, select the type of app you want to create, enter a description, and create a Bundle Identifier using format 

Finally, select any special capabilities your app may need to access and click 

 Select the App Store Distribution option and then click 

 Select the certificate that was generated earlier and click 

 Enter a Provisioning Profile Name and select 

Setting up Your Certificates on the Apple Developer Portal

 When you’re ready to publish your app from Unity, press 

 selected and that the iOS tab is selected. There are a lot of advanced app settings available in these sections. In this tutorial, we’ll look at the minimum settings you’ll need to adjust to publish a new app. Note that the Apple review team are quite strict on quality; for a final version, you’d probably have to set up all icons and information before they will clear it (

 At the top of the screen, fill in the information under Player. You can also select the default app icons and cursor image (

 Change the Bundle Identifier to the identifier you set up in Step 8 in the section 

“Setting up Your Certificates on the Apple Developer Portal”

 to match the one you set up in Step 4 in section 

 and then set the Build Number. The format you use for the number is up to you (

 and set the Minimum SDK level you are targeting (iOS version). If you are going to upload this build to the App Store, make sure you use 

 and choose a save location to create your XCode project. 

Publishing from Unity

 Open the newly created project in XCode.

The project details should already be filled out as this was generated automatically when the project was built by the Unity Engine created (

 Make sure that you’re signed in with the same account you used to create the certificate in Step 4 of section 

 Once archiving is completed, the Archive location will open. Select 

 Select the distribution store you wish to submit to — in this case the iOS App Store — and select 

 Work your way through the specific settings windows that follow, choosing the settings as per your requirements. Click 

 until you get to the Upload screen. Review your settings and select 

Creating and uploading your XCode

You should now have a firm understanding of the steps needed to publish a Unity application to iOS. You can use the same method to publish your own custom Reflect Viewers to the iOS App Store. 

Unity Version 2019.3