Mac application package or core system service
File type: Program executable file, Email attachment blocked file
Files with app extension are commonly related to app packages for Mac OS X (macOS) operating system for Apple Mac Pro, MacBook Pro, Mac Mini and MacBook Air computers.
Found 19 different file type records with the same app filename suffix.
File type category:
Program executable file
Email attachment blocked file
Date updated: January 8, 2025
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.
MAC OS X (macOS) executable application. You can view only application directory with app suffix contents and files. In Windows environment not executable.
There exist utilities that can help you with conversion of APP format to something like DMG.
macOS (Apple macOS / Mac OS X)
Mac OS X (Apple macOS / Mac OS X)
Xcode (Apple macOS / Mac OS X)
App2Dmg (Apple macOS / Mac OS X)
File type category:
3d graphics, CAD-CAM-CAE file
Date updated: May 27, 2019
The app file extension is also used by Alphacam, a leading Microsoft Windows CAD/CAM software solution for the Woodworking industry.
The app file used in Alphacam contains punch post data.
Probably not meant to be accessed by the user.
Probably cannot be converted to anything else.
Alphacam (Microsoft Windows)
File type category:
GIS, GPS navigation and map file
Date updated: August 30, 2017
File extension app is also used by ESRI ArcPad, a mobile field mapping and data collection software designed for GIS professionals.
An .app file used in ArcPad contains saved project data.
Use ArcPad to open .app project files.
Projects can be typically exported to some output or exchange format.
File type category:
Bitmap image file
Date updated: May 6, 2019
The app file extension is related to picture image file format used by Atari 800, 400, 130, 65 XE and XL family of 8-bit computers, released in 1979 by Atari.
The app file stores picture image in 80x192 resolution with 256 colors.
Use RECOIL to open *.app files.
Probably can be exported to other formats.
RECOIL (Multiplatform)
RECOIL (Multiplatform)
File type category:
Source code and script file
Date updated: February 18, 2019
The app file extension is associated with the Visual Objects an object oriented applications development platform for Microsoft Windows operating system, developed by CA Technologies.
The app file stores programming project.
Visual Objects (Microsoft Windows)
File type category:
Program executable file
Date updated: December 12, 2018
The app file extension is also associated with the Clarion, a 4GL, multi-paradigm, programming language and Integrated Development Environment developed by SoftVelocity.
This type of .app files stores application created in Clarion for Windows.
Probably can be opened using Clarion. We do not know about any other 3rd party software capable of handling this file type.
A conversion of this file type is unlikely.
Clarion (Microsoft Windows)
File type category:
Program executable file
Date updated: February 10, 2017
The app file extension was also used in Cybiko devices.
The Cybiko is a hand held computer introduced in May 2000 designed for teenagers, featuring its own two-way radio text messaging system.
It has over 430 "official" freeware games and applications. Because of the text messaging system, it features a QWERTY Keyboard that was used with a stylus.
An MP3 player add-on was made for the unit as well as a SmartMedia card reader. The company stopped manufacturing the units after two product versions and only a few years on the market. However, because of the unique radio messaging hardware there is still a hobbyist community using Cybiko.
File type category:
Various data file
Date updated: July 16, 2024
The app file extension is associated with the dBase a database engine, a form engine and database programming language for various platforms.
The app file stores object created by the dBase application generator feature.
Probably not meant to be accessed by the user.
Probably cannot be converted to anything else.
dBASE (Microsoft Windows)
dBASE (Microsoft Windows)
dBASE (Microsoft Windows)
File type category:
Program executable file
Date updated: February 26, 2019
The app file extension is associated with DR-DOS, once a popular PC operating system that was originally created and developed up to version 6.0 by Digital Research. The .app file contains application executable.
DR-DOS (Microsoft MS-DOS)
File type category:
Program executable file
Date updated: April 6, 2017
The app file extension is associated with the GEM (Graphics Environment Manager), an operating environment for DOS operating systems, developed by Digital Research in 1985.
The app file stores application bundle written for GEM.
Use GEM to open *.app files.
GEM (Multiplatform)
File type category:
Mobile phones related file
Date updated: September 2, 2022
File extension app is also used in HarmonyOS, a mobile operating system from Huawei used in their devices.
A typical .app file represents HarmonyOS app and is made up of several HAP files inside the archive. These files are made using the Huawei DevEco Studio.
Can be used only on HarmonyOS platform, but Huawei DevEco Studio can be used to handle or create these files.
DevEco Studio (Microsoft Windows)
DevEco Studio (Microsoft Windows)
HarmonyOS (Microsoft Windows)
File type category:
Plugin, addon file
Date updated: January 30, 2019
The app file extension is associated with the Lotus Symphony an office suite for Windows, Mac and Linux that allows users to create documents, spreadsheets, presentations etc.
The app file stores add-in for Lotus Symphony.
Lotus Symphony (Microsoft MS-DOS)
Lotus Symphony (Microsoft MS-DOS)
File type category:
Program executable file
Date updated: August 2, 2019
The app file extension is associated with the PocketC CE development tool for WindowsCE-based devices.
The app file stores application created in PocketC.
OrbWorks PocketC CE is no longer being supported or maintained.
File type category:
Program executable file
Date updated: January 31, 2017
The app file extension is related to the Psion OVAL.
It is a rapid development environment for hand helds - quick, cost-effective programming.
One of the great things about the Psion computers is how easily they can be programmed.
This can be done on the Psion machine itself (using the built-in OPL editor) or by using a PC-based software development kit (SDK), software development environment (SDE) or Psion 'emulator'.
File type category:
Program executable file
Email attachment blocked file
Date updated: September 18, 2018
The app file extension is associated with the Symbian OS, a mobile platform used in various smart mobile phones developed by Sony Ericsson, Nokia etc.
The app file stores application for Symbian OS.
Nokia stopped developing of Symbian in 2012.
Use compatible tools to work with *.app files.
Probably cannot be exported to other formats.
File type category:
Program executable file
Date updated: February 8, 2019
The app file extension is associated with the Team Developer, a .NET integrated development environment that allows programmers to develop 32-bit Windows applications.
The app file stores normal mode application data.
Use compatible tools to work with *.app files.
Probably can be converted to other formats.
Team Developer (Microsoft Windows)
Team Developer (Microsoft Windows)
Team Developer (Microsoft Windows)
File type category:
Program executable file
Email attachment blocked file
Date updated: December 13, 2018
The app file extension is associated with the ThecusOS, an operating system for some kind of NAS (network attached storage) devices developed by Thecus.
The app file stores application written for ThecusOS.
Use ThecusOS to open *.app files.
Probably cannot be converted to anything else.
ThecusOS (Linux/Unix)
File type category:
Various data file
Date updated: February 22, 2019
The app file extension is related to Timex Data Link USB an utility for Microsoft Windows that allows users to import schedules from the web into your watch.
The app file stores various data for internal purposes of the Timex Data Link USB.
Probably not meant to be accessed by the user.
Probably cannot be converted to anything else.
Timex Data Link USB software (Microsoft Windows)
File type category:
Program executable file
Date updated: August 9, 2019
The app file extension is often used for various compiled applications and programs and one of such file types is also generated by Visual FoxPro when a new program is built.
This particular app file type is generated from a .pjx project through Project Manager ► Build function.
You can load this type of .app file to Visual FoxPro and launch the program.
Once the app is compiled from FoxPro database, a conversion seems unlikely. You would need to convert the source database.
Visual FoxPro (Microsoft Windows)
FoxPro (Microsoft Windows)
Visual FoxPro (Microsoft Windows)
FoxPro (Microsoft Windows)
Visual FoxPro (Microsoft Windows)
FoxPro (Microsoft Windows)
Visual FoxPro (Microsoft Windows)
FoxPro (Microsoft Windows)
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