App

App, Apps or APP may refer to:

Computing

 * Application software
 * Mobile app, software designed to run on smartphones and other devices


 * Web application or web app, software designed to run inside a web browser
 * App (file format), a file format used by HarmonyOS as an app package
 * 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, simple HTTP-based protocol for creating and updating web resources

Education

 * Advanced Placement Program, a program offering college-level curriculum and examinations to high school students
 * Appalachian State University, a university in Boone, North Carolina, US
 * Appalachian State Mountaineers, the university's athletic program
 * Assessing Pupils' Progress, an assessment methodology used in schools in England and Wales

Entertainment and media

 * APP (film), a 2013 Dutch film that utilizes second screen technology
 * Apps (film), a 2021 anthology horror fantasy film
 * The App, a 2019 Italian drama
 * Asbury Park Press, a newspaper of Monmouth County, New Jersey, US
 * Associated Press of Pakistan, news agency of Pakistan
 * Archive of Public Protests (Archiwum Protestów Publicznych), a collective of photographers and writers and their work documenting protests in Poland

Medicine

 * Acute-phase protein, a class of proteins whose concentration changes in response to inflammation
 * Advanced practice provider, or mid-level practitioner, a class of healthcare providers
 * Amyloid-beta precursor protein, a protein whose fragments are associated with Alzheimer's disease and other neurological disorders

Organizations

 * African Prisons Project, a UK-based NGO
 * Alberta Provincial Police, a Canadian police force from 1917 to 1932
 * American Principles Project, a libertarian and conservative political think tank
 * Asia-Pacific Partnership, an international environmental protection alliance
 * Asia Pulp & Paper, a pulp and paper company based in Jakarta, Indonesia
 * Associated Press of Pakistan, a national news agency of Pakistan
 * Association of Pickleball Professionals
 * Association of Professional Piercers, an international organization for body piercing

Politics

 * All People's Party (disambiguation), various political parties
 * Alliance populaire progressiste or People's Progressive Alliance, a party in Mauritania
 * Animal Protection Party, United Kingdom
 * Australian Protectionist Party
 * Austrian People's Party
 * Aggrupation of Parties for Prosperity, a local Philippine party
 * Alliance for the Homeland, a Romanian party
 * American Principles Project, a think-tank
 * Reason Party (Poland) (or Anticlerical Progress Party)

People

 * App (surname)
 * Apps (surname)

Train stations

 * Appleby railway station, England (by GBR code)
 * Appleton, Wisconsin, United States (by Amtrak station code)

Other uses

 * Atactic polypropylene, a hot-melt adhesive
 * Authorized push payment fraud (APP fraud), fraudulent diversion of funds
 * App, a slang term for "appetizer"