Apple Inc. is an American multinational technology company headquartered in Cupertino, California, that designs, develops and sells consumer electronics, computer software, and online services. It is considered one of the Big Tech technology companies, alongside Amazon, Google, Microsoft, and Facebook.The company's hardware products include the iPhone smartphone, the iPad tablet computer, the Mac personal computer, the iPod portable media player, the Apple Watch smartwatch, the Apple TV digital media player, the AirPods wireless earbuds and the HomePod smart speaker. Apple's software includes macOS, iOS, iPadOS, watchOS, and tvOS operating systems, the iTunes media player, the Safari web browser, the Shazam music identifier and the iLife and iWork creativity and productivity suites, as well as professional applications like Final Cut Pro, Logic Pro, and Xcode. Its online services include the iTunes Store, the iOS App Store, Mac App Store, Apple Arcade, Apple Music, Apple TV+, iMessage, and iCloud. Other services include Apple Store, Genius Bar, AppleCare, Apple Pay, Apple Pay Cash, and Apple Card.Apple's worldwide annual revenue totaled $274.5 billion for the 2020 fiscal year. Apple is the world's largest technology company by revenue and one of the world's most valuable companies. It is also the world's third-largest mobile phone manufacturer after Samsung and Huawei.In August 2018, Apple became the first publicly traded U.S. company to be valued at over $1 trillion and just two years later in August 2020 became the first $2 trillion U.S. company.The company employs 137,000 full-time employees and maintains 510 retail stores in 25 countries as of 2020.It operates the iTunes Store, which is the world's largest music retailer. As of January 2020, more than 1.5 billion Apple products are actively in use worldwide.The company also has a high level of brand loyalty and is ranked as the world's most valuable brand.