There are 18 other file types using
the APP file extension!

empty icon.app - Lotus Symphony add-in application

empty icon.app - dBase application generator object

empty icon.app - DR-DOS executable application

app icon.app - Visual FoxPro application

app icon.app - Alphacam punch post

empty icon.app - ArcPad project file

empty icon.app - Psion OVAL data

empty icon.app - Timex Data Link USB application

empty icon.app - GEM application bundle

empty icon.app - CA Visual Objects platform for developer (CAVO) project

empty icon.app - Clarion for Windows application

empty icon.app - Cybiko computer application file

empty icon.app - Team Developer normal mode application

empty icon.app - OrbWorks PocketC CE application

empty icon.app - Symbian OS application

empty icon.app - ThecusOS application

empty icon.app - Atari picture image

empty icon.app - HarmonyOS App Package

APP file extension - Mac application package or core system service

What is app file? How to open app files?

File extension app is associated with the macOS (Mac OS X) operating system.

The app suffix is used as a container for Mac applications. Under Mac OS X (macOS) it is visible like single application with extension app and it's executable.

Under Windows operating systems this file shows as a directory with *.app suffix containing application files.

The default software associated to open app file:

macOS icon

Apple, Inc. logomacOS  Apple macOS / Mac OS X software

Company or developer:
Apple, Inc.

macOS is Unix-based desktop operating system, a successor of Mac OS X system for MacBook-family, iMac, Mac Mini and Mac Pro computers, developed and sold by Apple, Inc.

Mac OS X icon

Apple, Inc. logoMac OS X  Apple macOS / Mac OS X software

Company or developer:
Apple, Inc.

OS X or Mac OS X is Unix-based operating system developed by Apple Inc. for Macintosh computers. It contains basic core applications for everyday use, such as Finder basic file manager, Safari for Internet browsing, QuickTime for video, iTunes for managing audio data and iPod, iOS devices management , iMessage instant messaging, Mail, Contacts, Calendar and many more.

The latest version 10.11 of OS X is called El Capitan. It is available to purchase on Mac App Store as well as is distributed with new Mac computers and notebooks. It includes features to improve the security, performance, design and usability.

OS X operating system was replaced by new macOS in 2016!

Xcode icon

Apple, Inc. logoXcode  Apple macOS / Mac OS X software

Company or developer:
Apple, Inc.

Apple Xcode is IDE (integrated development environment) used to create applications for Mac OS X and iOS. Applications are programmed in Objective-C programming language. Xcode is available for Mac OS X.

Related articles:

Change app icon on Mac

Help how to open:

MAC OS X (macOS) executable application. You can view only application directory with app suffix contents and files. In Windows environment not executable.

How to convert:

There exist utilities that can help you with conversion of APP format to something like DMG.

Find conversions from app file:

app to dmg

app to exe

app to ipa

app to mp3

Find converter to app file type:

exe to app

fla to app

html to app

ipa to app

sb3 to app

swf to app

zip to app

List of software applications associated to the .app file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open app file, edit app file, convert app file, view app file, play app file etc. (if exist software for corresponding action in File-Extensions.org's database).

Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting app files.

Software that open app file - Mac application package or core system service

Programs supporting the exension app on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open app file action.

Apple macOS / Mac OS X:

Main software associated with app file by default:
macOS small icon macOS
Mac OS X small icon Mac OS X

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