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Apps

An app (short for application) is a piece of software downloaded and installed onto a device such as a smartphone, tablet, or smart TV. Apps can be found on platforms like the Apple App Store or Google Play Store, and they are designed to run natively on a specific operating system.

Apps are highly interactive and can work with a wide variety of media types, including video, audio, animation, and graphics. Many apps also store data locally on the device, which means they can function with limited or no internet connection once downloaded.

Advantages of distributing via apps include a smooth, responsive user experience and the ability to send push notifications directly to users. Apps can also take advantage of device hardware — such as GPS, cameras, and microphones — in ways that websites cannot.

Disadvantages include the cost and complexity of development, since separate versions are often needed for different operating systems (iOS and Android). Users must also actively choose to download an app, which creates an extra barrier compared with simply visiting a website.

Because apps often display content on smaller screens with limited data bandwidth, file formats are typically compressed to keep file sizes manageable. For images, formats such as JPEG or PNG are common; for video, MP4 is widely used.