APP file extension. How to open and convert files with APP file suffix

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

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

.app - Lotus Symphony add-in application

.app - dBase application generator object

.app - DR-DOS executable application

.app - Visual FoxPro application

.app - Alphacam punch post

.app - ArcPad project file

.app - Psion OVAL data

.app - Timex Data Link USB application

.app - GEM application bundle

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

.app - Clarion for Windows application

.app - Cybiko computer application file

.app - Team Developer normal mode application

.app - OrbWorks PocketC CE application

.app - Symbian OS application

.app - ThecusOS application

.app - Atari picture image

APP file extension - HarmonyOS App Package

What is app file? How to open app files?

File type specification:

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.

The default software associated to open app file:

HarmonyOS

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

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.