Definition of "APP"

APP¹

noun
plural APPs
1. (nonstandard, common in China) Alternative form of app
  Quotations
  World Cup to live on APP in ChinaChina's Central Television, jointly with the digital firm of Ali Cloud, Tuesday released the unique APP product that is authorized to broadcast the World Cup live. Besides TV and web, APP on mobile devices has become the 3rd platform to watch the tournament live.
  2014, “World Cup to live on APP in China”, in Xinhua‎, archived from the original on 4 July 2014
  The Dalai Lama launches free APP
  2017, Renée Salmonsen, “The Dalai Lama launches free APP”, in Taiwan News‎
  China to foster 300,000 industrial Internet APPs by 2020, ministryChina’s Ministry of Industry and Information Technology (MIIT) has recently released a plan to foster 300,000 industrial Internet APPs for specific industries and specific scenarios by 2020, meeting key demands in the key links of the manufacturing industry, including R&D and design, manufacturing, operations, maintenance and operations management.
  2018, “China to foster 300,000 industrial Internet APPs by 2020, ministry”, in Xinhua‎

APP²

noun
countable and uncountable, plural APPs
1. (countable, biochemistry, immunology) Initialism of acute-phase protein.
2. (countable, biochemistry, medicine) Initialism of amyloid precursor protein.
3. (uncountable) Initialism of ammonium polyphosphate.
4. (finance) Initialism of authorized push payment.