Apple Begins Accepting OS X Mountain Lion Apps for Mac App Store - MacRumorsOpen MenuShow RoundupsShow Forums menuVisit ForumsOpen Sidebar
Skip to Content

Apple Begins Accepting OS X Mountain Lion Apps for Mac App Store

osxmountain
Following the release of the Golden Master version of OS X Mountain Lion, Apple has begun accepting Mountain Lion apps into the Mac App Store. From an email that Apple sent to registered developers:

Make sure your apps take advantage of the great new features in OS X Mountain Lion when the world's most advanced operating system ships to millions of customers worldwide. Download OS X Mountain Lion GM seed and Xcode 4.4 GM seed, now available on the Mac Dev Center. Build your apps with these latest seeds, then test and submit for review.

You can also submit iOS apps that take advantage of the new cross-platform Game Center Groups, so they'll be available when OS X Mountain Lion ships.

OS X Mountain Lion is only available to registered developers presently. The final version will be available to customers through the Mac App Store later in July. Apple will be pricing the release at $19.99.

Popular Stories

iPhone 18 Pro and Pro Max Feature

'Apple Upgrade' Program Reportedly Launching Next Week

Tuesday July 21, 2026 8:30 am PDT by
Apple and Klarna are partnering on a new "Apple Upgrade" leasing program set to launch in the U.S. on Tuesday, July 28, according to Bloomberg's Mark Gurman. The program will allow you to finance most iPhone, iPad, Mac, and Apple Watch models, with a 24-month term for iPhones and Apple Watches and a 36-month term for iPads and Macs. Customers will be able to pay off the device early during...
iPhone 18 Pro Deep Red Feature

iPhone 18 Pro Launching in Two Months With These 12 New Features

Friday July 17, 2026 10:39 am PDT by
It is now mid-July, and that means the iPhone 18 Pro and iPhone 18 Pro Max are now just two months away. The devices are expected to look similar to the iPhone 17 Pro and iPhone 17 Pro Max, but there will still be many year-over-year changes, with rumored features including a smaller Dynamic Island, 5G via satellite, and more. Apple is expected to unveil the iPhone 18 Pro, iPhone 18 Pro Max, ...
iPhone 18 Pro Deep Red Feature

iPhone 18 Pro Launching in Two Months With These 12 New Features

Tuesday July 21, 2026 6:22 am PDT by
It is now mid-July, and that means the iPhone 18 Pro and iPhone 18 Pro Max are now just two months away. The devices are expected to look similar to the iPhone 17 Pro and iPhone 17 Pro Max, but there will still be many year-over-year changes, with rumored features including a smaller Dynamic Island, 5G via satellite, and more. Apple is expected to unveil the iPhone 18 Pro, iPhone 18 Pro Max, ...

Top Rated Comments

183 months ago
For context, when they did this for Lion (https://www.macrumors.com/2011/07/11/apple-asks-developers-for-os-x-lion-mac-app-store-submissions/), they shipped it 9 days later (https://www.macrumors.com/2011/07/20/apple-launches-os-x-lion-via-mac-app-store/).

EDIT: See Peace's post (https://forums.macrumors.com/showpost.php?p=15216492&postcount=12) as well. It's looking like sometime between the 18th and 24th, based on a previous sample size of one.
Score: 55 Votes (Like | Disagree)
183 months ago
Apple, focus on the features, not the suing.

Yes! Because it's the same people that doing the suing and the product development!
Score: 14 Votes (Like | Disagree)
Sylon Avatar
183 months ago
I hope with ML that more and more developers submit more apps. The Mac App Store isn't the most impressive thing on the planet, mainly because most devs are focusing on the iOS platform. Make more apps for the Mac!!!
Score: 14 Votes (Like | Disagree)
183 months ago
Apple officially accepting OS X 10.8 App's:


Make sure your apps take advantage of the great new features in OS X Mountain Lion when the world's most advanced operating system ships to millions of customers worldwide. Download OS X Mountain Lion GM seed and Xcode 4.4 GM seed, now available on the Mac Dev Center. Build your apps with these latest seeds, then test and submit for review.
You can also submit iOS apps that take advantage of the new cross-platform Game Center Groups, so they'll be available when OS X Mountain Lion ships.
Score: 11 Votes (Like | Disagree)
ECUpirate44 Avatar
183 months ago
The price point is pretty impressive.
Score: 10 Votes (Like | Disagree)
183 months ago
For context, when they did this for Lion (https://www.macrumors.com/2011/07/11/apple-asks-developers-for-os-x-lion-mac-app-store-submissions/), they shipped it 9 days later (https://www.macrumors.com/2011/07/20/apple-launches-os-x-lion-via-mac-app-store/).

great observation, you're comment deserves more up votes :D
Score: 8 Votes (Like | Disagree)