APP file

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APP file

An application in the Mac. Although files with an APP extension appear to be single files, they are actually a hierarchy of files and folders that contain the executable program, other software components and data. Known as an application "package" or "bundle," the APP file extension is used with several other operating systems.

iOS Mobile Apps
Apple's iOS apps also use the APP package, although for ARM hardware rather than Intel. When submitting to the App Store, the Xcode development system compresses (zips) the APP package along with iTunes images and meta-data into an archive with the iPhone App (IPA) extension.

Mac Utilities
Here are some of the utility apps that come with Macs. For example, is a screen capture tool, and Migration copies files to another computer.

Inside the Grab App Package is actually a Contents folder that contains these files and folders. Right clicking an .app file and selecting Show Package Contents reveals the hierarchy.

It Can Be This Complex
The entire hierarchy of the Firefox browser app ( is drawn out all the way just to show how elaborate the contents of a package can be.
References in periodicals archive ?
CAPTRUST has a smartphone app extension of its Retirement Blueprint tool in the works and may introduce it as soon as early 2020.
'In the spirit of cooperating with the PCC, Grab has also agreed to continue to bear the costs of the Uber app extension until April 15, 2018.
Additionally, a mobile app extension of Applied CSR24, Applied MobileInsured, provides brokers the industrys first native, broker-branded mobile application to provide mobile customer self-service via iOS or Android smartphone devices.
Nicolas Moulin-Fournier, SVP New Video Services, commented on the app extension: " has been welcomed by broadcasters for its capacity to create value and by viewers for living up to its promise: "Free to choose".
The integration, which works with pro and enterprise accounts, is available via a free app extension in the Chrome Web Store.
1Password App Extension for iOS from AgileBits on Vimeo.
Google has launched a new Google Search app extension for Apple's iMessage instant messaging service.
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According to the security expert, Protect VPN-developed by Onavo, which was acquired by Facebook in 2013-uses a "Packet Tunnel Provider" app extension that runs as long as the VPN is connected.
As well as using native maps and integrating campusM with the University's Moodle and PeopleSoft systems, Ko will develop native apps through the campusM App Extension Kit (AEK) and will use iBeacons technology for presence- and location-aware apps.
The new Shopify POS will be faster, more intuitive, and more scalable point of sale software, providing retailers with a simple interface, new customer service shortcuts, and access to all of Shopify's POS app extensions. .