Learn how the Mac App Store beautifully showcases your apps and makes them even easier to find, and how Developer ID and notarization make it safer for users to install apps that you distribute yourself.
Mac App Store
Check the Mac App Store item specifically; it should have a circular green light next to it if the App Store is online. A green circle means that service is operating normally. Apple adds notices or changes the color and shape of different lights to let you know when particular services aren’t working. Download Jettison 1.8.1 for Mac from our software library for free. The program lies within System Tools, more precisely Device Assistants. Our antivirus scan shows that this Mac download is malware free. The bundle id for this application is com.stclairsoft.Jettison.AppStore. Alternatives to Jettison for Windows, Mac, Linux, Software as a Service (SaaS), Web and more. Filter by license to discover only free or Open Source alternatives. This list contains a total of 8 apps similar to Jettison. List updated: 11:09:00 AM.
The Mac App Store makes it simple for customers to discover, purchase, and download your apps, and easily keep them updated. Organized around the specific things customers love to do on Mac, along with insightful stories, curated collections, and videos, the Mac App Store beautifully showcases your apps and makes them even easier to find.
iPhone and iPad apps on Apple silicon Macs
The Mac App Store brings iPhone and iPad apps to Apple silicon Macs — so your apps can reach even more users worldwide. By default, your apps will be published automatically on the Mac App Store. Confirm that your apps gracefully handle cases where iPhone and iPad features are not available on Mac.
iPad apps that support modern technologies like keyboard input, multitasking, size classes, and SwiftUI will automatically inherit great macOS features like resizability and full screen mode.
Which is why human App Reviewers ensure that the apps on the App Store adhere to our strict app review standards. Our App Store Review Guidelines require apps to be safe, provide a good user experience, comply with our privacy rules, secure devices from malware and threats, and use approved business models.
Web Extensions
Safari Web Extensions can add custom functionality to Safari 14 using the same WebExtensions API used in other browsers, such as Chrome, Firefox, and Edge. And with a new conversion tool in Xcode 12, you can quickly bring your existing extensions to Safari and make them available on the Mac App Store.
Outside the Mac App Store
While the Mac App Store is the safest place for users to get software for their Mac, you may choose to distribute your Mac apps in other ways. Gatekeeper on macOS helps protect users from downloading and installing malicious software by checking for a Developer ID certificate. Make sure to test your apps with the latest version of macOS and sign your apps, plug-ins, or installer packages to let Gatekeeper know they’re safe to install.
You can also give users even more confidence in your apps by submitting them to Apple to be notarized.
Mac Logo
The Mac logo is designed to easily identify software products and hardware peripherals developed to run on macOS and take advantage of its advanced features.
| Mac App Store | Outside Mac App Store | |
|---|---|---|
| App Distribution | Hosted by Apple | Managed by developer (with Developer ID) |
| Software Updates | Hosted by Apple | Managed by developer |
| Worldwide Payment Processing | Managed by Apple | Managed by developer |
| Volume Purchasing and Education Pricing | Managed by Apple | Managed by developer |
| Advanced App Capabilities (iCloud Storage and Push Notifications) | Available | Available |
| App Store Services (In-App Purchase and Game Center) | Available | Not Available |
| 64-Bit | Required | Recommended |
| App Sandboxing | Required | Recommended |
Jettison Mac App Store Settings
December 29 2020 by Jeff Johnson
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In its relentless zeal to release major macOS updates every year, Apple is leaving its users behind. Not just behind in their macOS versions but also behind in their app versions installed from the Mac App Store. Many macOS Mojave users, including myself, have experienced frequent failures of App Store to update their installed apps. Whenever this occurs, App Store shows the completely unhelpful error message 'cancelled'.
This issue has been occurring for some time. Rob Griffiths blogged about it a month ago. I don't know exactly when it started. The Mac OCSP appocalypse, as I call it, occurred on November 12, but that may just be a coincidence. In any case, the issue seems somewhat random, though persistent. And as far as I can tell, it only occurs on Mojave, not on Catalina or Big Sur (or High Sierra, which still has an older version of the Mac App Store from before it was revamped).
I decided to investigate, and I was able to catch the problem occurring with a packet trace and the Console log simultaneously. Below is a screenshot of the packet trace in Wireshark. You can see that my Mac establishes an https connection with osxapps.itunes.apple.com, receives some data, and then closes the connection (FIN).
Below is the Console log from the same time period. The commerce process (which also appears in Activity Monitor) is doing most of the work here. Again, you can see the connection to the https://osxapps.itunes.apple.com/ URL. And TCP Conn Cancel indicates that commerce has closed the connection. The error message: load failed with error Error Domain=NSURLErrorDomain Code=-999 'cancelled'. This error is documented, but the documentation is not very informative: 'NSURLSession sends this error to its delegate when a task is cancelled.' We still don't know why it was cancelled.
Jettison From Mac App Store
I ended both screenshots at the moment when the connection is cancelled, but right after that the commerce process passes the error back to the appstoreagent process, which then logs [PreflightManager]: Preflight fetch failed with error - Error Domain=NSURLErrorDomain Code=-999 'cancelled' with the https://osxapps.itunes.apple.com/itunes-assets/ URL, and then [PreflightManager]: Displaying preflight error dialog Error Domain=NSURLErrorDomain Code=-999 'cancelled', at which point we see the error dialog in the first screenshot.
I hope that Apple can use this information to narrow down the problem and fix it. Since the problem hasn't always occurred on Mojave, and it seems to be the result of some data downloaded from apple.com, it's possible that the problem could be fixed on the server side without having to release a Mojave software update to all Mac users (which is unlikely at this point except for security updates). I am able to directly download from the https://osxapps.itunes.apple.com/itunes-assets/ URL, the result of which is a pfpkg file (preflight package?). Opening in a hex editor, I can see that the file is a xar archive (man xar in Terminal). Unarchiving reveals a 'Distribution' file in XML format with an installer-gui-script top-level element. There's nothing visibly wrong with this file, but I don't know whether the commerce process is getting the same data when it previously connected to the same URL.
One of the most frustrating aspects of being an App Store developer is that whenever users experience a problem with App Store installs and updates, they contact us instead of Apple, even though developers have no control whatsoever over the App Store app. All we developers can do is press the 'Release' button in App Store Connect, and then Apple has total control afterward. Even if you're not running Mojave, I hope you come away from this blog post with the realization that developers are as much at the 'mercy' of Apple as users are when it comes to the App Store app, and the only thing we can do to fix these problems is to complain to Apple and hope the company takes mercy on us.