The title and body ask two different things, ‘app package’ and ‘original files’.

  • The ‘original files’, source code, is never uploaded to Apple. You will need to get these from the original developer.

  • The compiled ‘app package’ in an .ipa bundle for execution on an iOS device (not Simulator) cannot be downloaded from App Store Connect.

    Apple does not provide any way of retrieving an upload app/IPA. It's neither possible through App Store Connect nor the App Store Connect API.

    https://stackoverflow.com/questions/60947606/download-ipa-build-via-app-store-connect-api

  • If you want to run the app on a physical device without releasing to the App Store, add the app to TestFlight and enable internal testing.

Answer from grg on Stack Exchange
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App Store
apps.apple.com › us › app › app-store-connect › id1234793120
App Store Connect App - App Store
Download App Store Connect by Apple on the App Store. See screenshots, ratings and reviews, user tips, and more games like App Store Connect.
Rating: 4.7 ​ - ​ 13.9K votes
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Apple Developer
developer.apple.com › app-store-connect
App Store Connect - Apple Developer
Group up to 10 of your apps together into a single download. ... Promote your app’s biggest moments — such as a new app launch, new version, or getting featured on the App Store — using marketing assets you generate in the App Store Connect app.
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Softonic
app-store-connect.en.softonic.com › home › iphone › utilities & tools › app store connect
App Store Connect for iPhone - Download
October 4, 2025 - App Store Connect for iPhone, free and safe download. App Store Connect latest version: Get in touch with your customers. App Store Connect is a tool
Rating: 8.9/10 ​ - ​ 61 votes
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MobileAction
mobileaction.co › home › aso › how to use app store connect in 2025: a step-by-step guide
How to use App Store Connect in 2025: A step-by-step guide | MobileAction
September 18, 2025 - Download Transporter from the Mac App Store, sign in with your Apple Developer credentials, then simply drag and drop your app’s IPA file and press “Deliver.” Transporter will upload the file and show progress, logging any errors or warnings ...
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WebCatalog
webcatalog.io › home › apps › software development › app store connect › desktop app
App Store Connect - Desktop App for Mac, Windows (PC)
Download WebCatalog Desktop. ... Manage and submit apps on the App Store, view sales reports, access app analytics, and invite users for testing via TestFlight. ... Use App Store Connect in a dedicated, distraction-free window with WebCatalog Desktop for macOS and Windows.
Find elsewhere
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Appcircle
docs.appcircle.io › account & organization › my organization › security › credentials › app store connect api key
App Store Connect API Key | Appcircle Docs
You can only download the file once. If you lose the file, you need to generate a new key. Adding a key to Appcircle is pretty easy. Go to your organization by selecting the bottom left button from the toolbar: On the Organization screen, select Add New on App Store Connect API Keys list item:
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Apple Developer
developer.apple.com › help › app-store-connect › get-started › app-store-connect-for-iphone-and-ipad
App Store Connect for iPhone and iPad - Get started - App Store Connect - Help - Apple Developer
Note: Newly added users in App Store Connect may need to wait up to 24 hours to access the mobile app. Download App Store Connect on the App Store · Related Overview of submitting for review Remove a submission from review Reply to App Review messages View ratings and reviews Overview of reporting ...
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CNET
download.cnet.com › app-store-connect › 3000-2094_4-77990923.html
App Store Connect for iOS - Free download and software reviews - CNET Download
October 5, 2025 - Download App Store Connect latest version for iOS free. App Store Connect latest update: October 5, 2025
Rating: 4 ​ - ​ 1 votes
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Microsoft Learn
learn.microsoft.com › en-us › connectors › appstoreconnect
App Store Connect - App Store (Independent Publisher) - Connectors | Microsoft Learn
Download Microsoft Edge More info about Internet Explorer and Microsoft Edge ... Access to this page requires authorization. You can try signing in or changing directories. Access to this page requires authorization. You can try changing directories. ... App store connect connector allows you to automate tasks and workflows for your app store submissions and updates.
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Apple
help.apple.com › app-store-connect › en.lproj › static.html
App Store Connect Help
In the dialog, click Download. If you no longer want to use an API key to authenticate into App Store Connect services, you can revoke the key.
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PyPI
pypi.org › project › appstoreconnect
appstoreconnect · PyPI
Starting with version 0.8.0 this ... topic where we would love to here your feedback and best practices. ... Download the file for your platform....
      » pip install appstoreconnect
    
Published   Sep 02, 2023
Version   0.10.1
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Adapty
adapty.io › blog › ios › app store connect guidelines for app developers
App Store Connect Guide for Developers and Marketers in 2025
August 25, 2025 - When you have both the App ID and the certificate, return to the Member Center again, but this time choose to create a new Profile — specifically, the “App Store” provisioning profile. Select the app ID, choose the devices on which you want to run the app, and click Generate. After you have generated, downloaded, and installed the profile to Xcode, you should be good to go. The next step is setting up a new app record in App Store Connect.
Price   $0
Address   104 5th Ave, 10011, New York
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Apple Developer
developer.apple.com › videos › play › wwdc2023 › 10117
What’s new in App Store Connect - WWDC23 - Videos - Apple Developer
Discover the latest updates to App Store Connect, the suite of tools used to manage and submit apps to the App Store. Explore how you can use the latest features to test, price, promote, and automate the management of your app more easily.
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Helm-app
helm-app.com
Helm for App Store Connect
Helm removes every single bit of tedium from App Store Connect, from logging in, to choosing the correct development team, incrementing version numbers, and just plain waiting for webpages to load. Why are you still reading this? Just download it already.