How to build IPA instead of Runner.app in Flutter

[tangible-idea]

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• I confirm I have searched the Docs, Codemagic Sample Projects, and GitHub Discussions.
• I confirm the software versions on my local computer match the ones in CI environment (e.g. Xcode version, Gradle version). See here
• I confirm I am able to do a fresh clone of the repository and build the project on my local computer.

Which mobile framework are you using?

Flutter (Dart)

Steps to reproduce

It is fine to build Android apk file. I can run directly on my phone.
but in terms of Runner file. I can not use it nor deploy on Firebase distribution.
How can I change a default build as returning ipa file instead of Runner.app?

Expected results

run flutter build ipa instead of flutter build ios command.
I could do on iOS only repository but not on the Flutter repo.

Actual results

Runner.app.zip file?

Build id (optional)

67de519dd727eec22ca1d5ee

[dam-ease]

Hello @tangible-idea,
To get an IPA file from the iOS build step, you need to code sign the application. This is a requirement for generating a valid .ipa file that can be installed on devices or distributed via Firebase or TestFlight. This section of the docs discusses in detail how to sign your iOS application using either the manual code sign method or automatic signing. In manual code signing, you save these files as Codemagic environment variables and manually reference them in the appropriate build steps, while in automatic code signing, Codemagic takes care of certificate and provisioning profile management for you.