There are 17 other file types using
the APP file extension!

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

empty - Lotus Symphony add-in application file

empty - dBase application generator object

empty - DR-DOS executable application file

app - Visual FoxPro application

app - Alphacam punch post file

empty - ArcPad project file

empty - Psion OVAL data

empty - Timex Data Link USB application file

empty - GEM application bundle

empty - CA Visual Objects platform for developer (CAVO) project file

empty - Clarion for Windows application

empty - Cybiko computer application file

empty - Team Developer normal mode application file

empty - OrbWorks PocketC CE application file

empty - ThecusOS application file

empty - Atari picture image

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APP file - Symbian OS application file

What is app file? How to open app files?

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.

The default software associated to app file type:

Symbian OS icon

Nokia Corporation logoSymbian OS  Symbian software

Company or developer:
Nokia Corporation

Symbian OS was the first popular user-friendly operating system for smart phones. Symbian OS supports many modern features, such as multitasking, memory protection, multi-touch, Microsoft Silverlight, Adobe Flash, widgets, video conferencing etc.. Pre-installed applications in phone can manage phone calls, SMS, MMS, multimedia, e-mails, Internet browsing etc.. Applications for Symbian are written in Symbian C++ programming language. Other applications are available to download on Nokia Ovi Store.

Help how to open APP files:

Currently there is no specific information available, about how to open this file extension.

How to convert file with extension APP:

Currently there is no specific information available, about how to convert this file extension.

List of recommended 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's database).

  • Others app file

Unspecified and all other actions for computer programs working with app file - Symbian OS application file

Click on the software link for more information about Symbian OS. Symbian OS uses app file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).


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