App, Apps or APP may refer to:

Science and technology

Computing

Application software Application software is any computer program that is intended for end-user use not operating, administering or programming the computer. An application (app, application program, software application) is any program that can be categorized as ...

, or app, a computer program designed to carry out a specific task **

Mobile app A mobile application or app is a computer program or software application designed to run on a mobile device such as a smartphone, phone, tablet computer, tablet, or smartwatch, watch. Mobile applications often stand in contrast to desktop appli ...

, designed to run on a mobile device **

Web application A web application (or web app) is application software that is created with web technologies and runs via a web browser. Web applications emerged during the late 1990s and allowed for the server to dynamically build a response to the request, ...

or web app, designed to run in a web browser *

App (file format) The HarmonyOS App Pack or the App file, identified with the file extension ".app", serves as the file format used by the HarmonyOS operating system. It functions as a native HarmonyOS app for distribution and installation through Huawei AppGallery, ...

, used by HarmonyOS * Adjusted Peak Performance, a metric to measure computing performance in 64-bit processors and above * Application Portability Profile, NIST standards and specifications for the Open System Environment *

Atom Publishing Protocol The name Atom applies to a pair of related Web standards. The Atom Syndication Format is an XML language used for web feeds, while the Atom Publishing Protocol (AtomPub or APP) is a simple HTTP-based protocol for creating and updating web reso ...

, simple HTTP-based protocol for creating and updating web resources

Other uses in science and technology

Acute-phase protein Acute-phase proteins (APPs) are a class of proteins whose concentrations in blood plasma either increase (positive acute-phase proteins) or decrease (negative acute-phase proteins) in response to inflammation. This response is called the ''acute-p ...

, a class of proteins *

Amyloid-beta precursor protein Amyloid-beta precursor protein (APP) is an integral membrane protein expressed in many tissues and concentrated in the synapses of neurons. It functions as a cell surface receptor and has been implicated as a regulator of synapse formation, ...

, a protein * Atactic polypropylene, a hot-melt adhesive

Arts, entertainment and media

* ''App'' (film), a 2013 Dutch film * ''Apps'' (film), a 2021 anthology horror fantasy film * '' The App'', a 2019 Italian drama * ''

Asbury Park Press The ''Asbury Park Press'', formerly known as the ''Shore Press'', ''Daily Press'', ''Asbury Park Daily Press'', and ''Asbury Park Evening Press'', is the third largest daily newspaper in the state of New Jersey. Established in 1879, it has been o ...

'', a newspaper of Monmouth County, New Jersey, US * Archive of Public Protests, a collective of photographers and writers and their work documenting protests in Poland *

The Alan Parsons Project The Alan Parsons Project was a British rock music, rock duo formed in London in 1975. Its core membership consisted of producer, audio engineer, musician and composer Alan Parsons, and singer, songwriter and pianist Eric Woolfson. They shared w ...

, former British rock band

Businesses and organizations

Businesses

Asia Pulp & Paper Asia Pulp & Paper (APP) is an Indonesian pulp and paper company based in Jakarta, Indonesia. One of the largest pulp and paper companies in the world, it was founded as Tjiwi Kimia by Eka Tjipta Widjaja in 1972. Asia Pulp & Paper is a subsidi ...

, a pulp and paper company based in Jakarta, Indonesia *

Associated Press of Pakistan Associated Press of Pakistan (APP) (Urdu: ) is a government-operated national news agency of Pakistan. APP has News Exchange Agreements with 37 Foreign News Agencies and has "around 400 editorial staff including around 100 Correspondents at the ...

, a national news agency of Pakistan * Association of Pickleball Players, a professional pickleball tour *

Association of Professional Piercers The Association of Professional Piercers (APP) is the oldest and longest running organization for professional Body piercing, piercing. History The Association of Professional Piercers was founded in 1994 by Michaela Grey and colleagues. The fir ...

, an international organization for body piercing

Political parties

* All People's Party (disambiguation), several political parties *

People's Progressive Alliance (Mauritania) The People's Progressive Alliance (, APP) is a small political party in Mauritania. The President of the APP is Messoud Ould Boulkheir,Animal Protection Party The Animal Protection Party (APP) was a political party founded in England in 2006 to represent an animal rights perspective. It stood four candidates in the 2010 general election. The party de-registered in 2016. 2010 general election The APP ...

, in England *

Australian Protectionist Party The Australian Protectionist Party (APP) is a minor nationalist political party in Australia. The party stated that it had been formed to fill the void of a pro-Australian party within the political arena based on traditional values. The APP w ...

Aggrupation of Parties for Prosperity Aggrupation of Parties for Prosperity, commonly known as APP and formerly known as Aggrupation of Parties for Progress, is a local political party in the region of Zamboanga Peninsula in the Philippines. It is a political party founded by Romeo ...

, in the Philippines *

Alliance for the Homeland The Alliance for the Homeland (, ApP, formerly known as PAINE) was a nationalist political party in Romania. History The party was founded on 19 September 2021 by Codrin Ștefănescu and promoted by Liviu Dragnea, who was the leader of the ...

(''Alianța pentru Patrie'', ApP), in Romania

Other organizations

Justice Defenders Justice Defenders (formerly African Prisons Project, or APP) is a registered UK charity and U.S. nonprofit working in prison communities across Africa. Through legal education, training, and practice, Justice Defenders equips prisoners and prison o ...

, formerly African Prisons Project, a charity *

Alberta Provincial Police The Alberta Provincial Police (APP) was the state police, provincial police service for the Provinces and territories of Canada, province of Alberta, Canada, from 1917 to 1932. The APP was formed as a result of the Royal North-West Mounted Police ...

, a former Canadian police force *

American Principles Project The American Principles Project (APP) is a socially conservative 501(c)(4) political advocacy group founded in 2009 by Robert P. George, Jeff Bell, and Francis P. Cannon. It is chaired by Sean Fieler. It is led by Terry Schilling, the son of ...

, a political advocacy group *

Asia-Pacific Partnership on Clean Development and Climate The Asia-Pacific Partnership on Clean Development and Climate, also known as APP, was an international, voluntary, public-private partnership among Australia, Canada, India, Japan, the People's Republic of China, South Korea, and the United Stat ...

People

App (surname) App is a surname. Notable people with the surname include: *Austin App Austin Joseph App (May 24, 1902 – May 3, 1984) was an American professor of medieval English literature who taught at the University of Scranton and La Salle University. Ap ...

* Apps (surname)

Other uses

* Appleby railway station, England, station code APP *

Appleton, Wisconsin Appleton () is the county seat of Outagamie County, Wisconsin, United States, with small portions extending into Calumet County, Wisconsin, Calumet and Winnebago County, Wisconsin, Winnebago counties. Located on the Fox River (Green Bay tributary ...

, United States (by Amtrak station code) * Assessing Pupils' Progress, an assessment methodology used in schools in England and Wales * Advanced practice provider, another term for a

mid-level practitioner Mid-level practitioners, also called non-physician practitioners, advanced practice providers, or commonly mid-levels, are health care providers who assess, diagnose, and treat patients but do not have formal education or certification as a physic ...