Info IconFrequently Asked Questions on the Mac App Store

To return to the product page, please use the “Back” button of your browser.

Why are most of your applications not available in the Mac App Store?

Software sold by Apple through the Mac App Store underlies certain limitations with respect to content and technologies used. Such programs, called “Apps”, are restricted. For example, an application that is capable of accessing files of the operating system or of other users after entering an administrator password is too powerful to be an App, so it cannot be sold in the App Store.

It would not be in the interest of our customers to cripple our pro applications, so that they could be offered through the App Store.

I have clicked the “View in Mac App Store” link on Apple's web page for your App. For some reason, iTunes is started telling me your App is not available in my country. How should I purchase?

This is a known problem which can occur when you have followed particular links on third-party web pages, directing your web browser to Apple's site. The information given by iTunes is incorrect. Our Apps are available in all countries listed in the table at the end of this page. To purchase a license, select the menu item App Store in the Apple menu of macOS and use the search field of the App Store application to enter the name of the App you are interested in.

I have lost one of your Apps. How can I get it back without having to pay again?

After you have purchased a license to use an App, you can download it as often as you like. Such downloads are free. Just navigate to the Purchased section in the App Store application.

I like to use the App on more than one of my computers. Do I have to buy multiple licenses?

If you are a private consumer, the answer will be no. Licenses you purchased in the Mac App Store are valid for an unlimited number of computers that you own. So there is no need to buy more than one copy.

If you represent a company or other organization, a license bought via the App Store is valid for either one single computer or one single person using multiple computers. For details in this case, please click the link App License Agreement which is displayed on the page of each App in the App Store.

After I download a new or updated App and try to start it for the first time, it appears to quit immediately and nothing else happens. What should I do?

When you are launching an App for the first time, Apple will verify if you are a legitimate user of the App. This can take some time, especially if the App Store is currently under high load. You should just wait a few seconds. After a while, macOS should display a panel asking you to enter your iTunes account credentials. If that panel is missing, either Apple's iTunes servers will be failing, or there will be something wrong with your Internet connection, or your installation of macOS will be defective. This will affect all paid Apps you have not used on this computer before and has nothing to do with the App you just loaded. Please verify that your Internet line is OK and that you are online. It might also help to wait a few minutes and try again. If this is not successful, please contact Apple for further assistance.

An App I have bought suddenly does not launch any longer. I am either told the App is damaged, or that it was bought for another computer. What now?

Due to an architectural design issue with the way Apple generates the technical license confirmations for Apps bought from the Mac App Store, most of such receipts for paid Apps will expire at a specific date and time. The last time this happened was

February 14, 2016, 06:56:35 p.m. UTC.

Most paid Apps purchased before but launched after this date, will expect that you re-confirm with Apple that you are a legitimate license holder. After you have specified the correct Apple ID and password matching your purchase, the App Store will re-issue your receipt and the App will start again. We have no influence on Apple's policy.

If you see a window like the following, just specify your App Store credentials used to purchase the App to resolve this problem. If you receive a message that the App is damaged, please see the next question.

Sign in to use this application on this computer

Note: A similar problem occurred on

November 11, 2015, 9:58:02 p.m. UTC.

macOS no longer starts an App and tells me it is damaged although I used it many times before. The file is OK and restoring it from backup has no effect. How can this happen?

Sometimes, macOS will surprise you with an error message like the one shown in the following window. This can happen after you downloaded an App for the first time, after you have updated an App, or after the receipt of an App has expired as explained in the preceding section.

is damaged and can't be opened. Delete and download it again from the App Store.

The error message is shown by macOS, not by the App. In nearly all cases, it does not indicate that files of the App have been damaged. (This could also happen, but in this case, you will see a different message which is explained in the next but one section below.) The message actually indicates that there is something wrong with the technical license confirmation (receipt) the App Store has generated for you, designed to prove that the App can be legitimately used on this Mac. Apple likes you to delete the App in this case, because this will automatically delete the defective receipt as well. After that, the App Store will have a second chance to create a correctly working license confirmation.

It might actually not be necessary to delete the App. You should first try just to restart the operating system. If time and date are not set correctly on your Mac, you should also correct these settings in System Preferences before the restart. In many cases, this will fix the problem already.

If these hints don't apply to your case, you can just follow Apple's recommendation, delete the App, and download it again. If you need detailed instructions, please see the end of the next but one section.

I tried all instructions but the App still no longer launches. Are there other solutions?

Unfortunately, specific versions of macOS have additional technical defects which can cause the Mac App Store still to fail even after you have performed the steps outlined in the previous section or after downloading a new copy of the App. After several attempts to repair the App Store, trying to launch the App only shows its icon shortly in the Dock, but then it disappears and nothing else happens. In such a case, you can try to reset the broken licensing system of macOS by manually removing the App's license confirmation, shutting down the App Store network connections, and clearing the App Store cache.

IMPORTANT: The following instructions can only be used with systems up to and including macOS 10.13 High Sierra. They won't work with operating systems macOS 10.14 or later which use very different App Store services.

  1. In the Finder, right-click the icon of the affected App and select the menu item Show Package Contents. The folder Contents will be shown.
  2. Locate the sub-folder _MASReceipt in this folder. Drag the folder _MASReceipt to the Trash.
  3. Now open the application Activity Monitor from the folder Utilities in the folder Applications. You will see a window listing running processes on your Mac.
  4. Enter the word store into the search field at the upper right corner of this window. The table will now be filtered to only show processes which have "store" in their names.
  5. Check if a process with the name storeuid is shown in the table. If yes, select the corresponding line, press the quit button (the button containing a circle with a cross at the top left of the window), and confirm that you are sure to quit this process.
  6. Repeat the last step with the process name storelegacy.
  7. Repeat this with the process name storeinappd.
  8. Repeat this with the process name storedownloadd.
  9. Repeat this with the process name storeassetd.
  10. Repeat this with the process name storeaccountd.
  11. Note: You should not quit other processes with "store" in their names, e.g. "mds_stores". Please close the Activity Monitor window now and go back to the Finder again.
  12. Hold down the option (alt) key and select the menu item Go > Library. Release the option key. You will now see the contents of your personal Library folder.
  13. Locate the folder Caches in the Library folder and open it.
  14. Check if a folder names storeaccountd is located in the Caches folder. If yes, drag it to the Trash.
  15. Repeat the last step with the folder name storeassetd.
  16. Repeat this with the folder name storedownloadd.
  17. Repeat this with the folder name storeinappd.
  18. Restart the computer.

After this procedure, the App Store should work correctly.

After an update, the App itself tells me its resources are damaged. What can I do?

When you update an App from the App Store, it can sometimes happen that Apple's update installer destroys parts of the software. This can especially happen if you allow automatic updates for Apps which are supposed to run all time. Because we know of this problem, all our Apps contain a security feature to detect this type of damage. In this case, you'll see a warning message similar to one of these examples (”Warning: The resources of this application have been damaged.” or “Warning: This App has been partially damaged.“):

Warning: The resources of this application have been damaged. Warning: This App has been partially damaged.

If the App Store application has destroyed the App, please use the following instructions to resolve this problem. All documents and settings of the App will remain intact:

  1. Quit the App in case it is still running.
  2. Locate the icon of the App in the Finder and drag this icon to the Trash.
  3. Open the App Store application and go to the section “Purchases”. You may need to identify as the user who has originally purchased the App, using your Apple-ID and password.
  4. Locate the damaged App in your list of purchases.
  5. Press the Download button for this App in the list to initiate a new download. The download is free. A fresh copy of the App will be installed on your system, avoiding the update mechanism of macOS which has damaged the App before.

The App should now work fine. If you still experience the same problem, your computer should be checked by a service technician.

Can I copy an App to a computer which is not connected to the Internet?

You can copy the App, but it won't work. All paid Apps require an Internet connection the first time they are started on a different computer. Apple verifies if you are the legitimate user of that App.

Can you help me if placing an order or downloading an App is not working?

Unfortunately, no. Apps are sold by Apple. It is neither legally, nor technically possible to give you any direct support regarding issues with the App Store or unlocking Apps with your iTunes account.

Who should I contact if I experience problems with the Mac App Store?

Open the App Store application and click on the item Support. It will direct you to a web page which can be used to contact the App Store. Note that there are actually five different App Stores, depending on country. The following companies are the actual vendors responsible for the transactions:

Actual Vendor

Responsible for the following countries:

Apple Inc.
One Apple Park Way
Cupertino CA 95014

United States of America,
Anguilla, Antigua & Barbuda, Argentina, Bahamas, Barbados, Belize, Bermuda, Bolivia, Brazil, British Virgin Islands, Cayman Islands, Chile, Colombia, Costa Rica, Dominica, Dominican Republic, Ecuador, El Salvador, Grenada, Guatemala, Guyana, Honduras, Jamaica, Mexico, Montserrat, Nicaragua, Panama, Paraguay, Peru, St. Kitts & Nevis, St. Lucia, St. Vincent & The Grenadines, Suriname, Trinidad & Tobago, Turks & Caicos, Uruguay, Venezuela
Apple Canada Inc.
120 Bremner Blvd, Suite 1600
Toronto ON M5J 0A8

Apple Pty Limited
Level 3, 20 Martin Place
Sydney NSW 2000

Australia, New Zealand
iTunes K.K.
Roppongi Hills
6-10-1 Roppongi, Minato-ku
Tokyo 106-6140

Apple Distribution International Ltd.
Hollyhill Industrial Estate
Hollyhill, Cork
Republic of Ireland

Albania, Algeria, Angola, Austria, Armenia, Azerbaijan, Bahrain, Belarus, Belgium, Benin, Bhutan, Botswana, Brunei, Bulgaria, Burkina Faso, Cambodia, Cape Verde, Chad, China, Congo, Croatia, Czech Republic, Cyprus, Denmark, Egypt, Estonia, Fiji, Finland, France, Gambia, Germany, Ghana, Greece, Guinea-Bissau, Hong Kong, Hungary, Iceland, India, Indonesia, Ireland, Israel, Italy, Jordan, Kazakhstan, Kenya, Korea, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Liberia, Lithuania, Luxembourg, Macau, Macedonia, Madagascar, Malawi, Mali, Malaysia, Malta, Mauritania, Mauritius (Republic of), Micronesia, Moldova, Mongolia, Mozambique , Namibia, Nepal, Niger, Netherlands, Norway, Oman, Pakistan, Palau, Papua New Guinea, Philippines, Poland, Portugal, Qatar, Romania, Russia, Sao Tome e Principe, Saudi Arabia, Singapore, Senegal, Seychelles, Sierra Leone, Slovakia, Slovenia, Solomon Islands, South Africa, Spain, Sri Lanka, Swaziland, Sweden, Switzerland, Taiwan, Tajikistan, Tanzania, Thailand, Tunisia, Turkey, Turkmenistan, Uganda, United Arab Emirates, Ukraine, United Kingdom, Uzbekistan, Vietnam, Yemen, Zimbabwe