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

app icon.app - Mac application package or core system service [common]

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

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APP file extension - HarmonyOS App Package

What is app file? How to open app files?

File type specification:

Mobile phones related file type icon Mobile phones related file type

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.

Updated: September 2, 2022

The default software associated to open app file:

HarmonyOS icon

Huawei logoHarmonyOS  Microsoft Windows software

Company or developer:
Huawei

HarmonyOS (HMOS) is a distributed operating system developed by Huawei to collaborate and interconnect with multiple smart devices on the Internet of Things ecosystem.

DevEco Studio icon

Huawei logoDevEco Studio  Microsoft Windows software

Company or developer:
Huawei

HUAWEI DevEco Studio is a one-stop integrated development environment (IDE) powered by the IntelliJ IDEA Community Edition and oriented to HarmonyOS-based devices in all scenarios.

Help how to open:

Can be used only on HarmonyOS platform, but Huawei DevEco Studio can be used to handle or create these files.

How to convert:

As far as we know, this .app file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

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 - HarmonyOS App Package

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

Microsoft Windows:

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