Software & Apps Explained: The Programs Behind Your Devices

Software and apps are the programs that make your devices useful — but the terminology can be confusing. What's the difference between an operating system, an app, a program and a service? Understanding the basics helps you use your devices better and choose software wisely.

This guide explains software and apps in plain terms — the concepts behind the programs you use.

What we'll cover

What software is The types of software Apps vs software

What software is

Software is the set of instructions that tells hardware what to do. It's the programs, apps and systems that make your devices functional:

Hardware is the physical device — the phone, computer, chip.

Software is the instructions — the programs that run on the hardware.

Without software, hardware is just an expensive box.

Everything you use — apps, browsers, games, your OS — is software.

Software is the instructions that make hardware useful. Without it, your devices couldn't do anything. It's the programs and systems you interact with.

The types of software

Software comes in a few main types:

Operating system. The base software that runs the device — Windows, macOS, Android, iOS (see our OS guide).

Applications (apps). Programs for specific tasks — browsers, office, games, tools.

System software. Utilities that manage the device (drivers, security tools).

Cloud/services. Software that runs over the internet (see our cloud guide).

Software includes the operating system, applications, system utilities and cloud services. Each plays a role in making your device useful.

Apps vs software

"App" and "software" are often used interchangeably, but there's a nuance:

An app is a program designed for a specific task — typically on a phone or tablet, or a small focused program.

Software is a broader term — any program, including large ones (like an OS or a big application).

In practice, "app" usually means the programs you use on your phone or as applications, while "software" can mean anything.

They're the same idea — programs that run on a device — just different words for scale/context.

💡 The simple take

"App" and "software" basically mean the same thing — programs that run on your device. "App" is usually used for phone/tablet programs and smaller applications; "software" is the broader term that includes everything. You don't need to stress about the distinction — they're the programs you use.

✨ Choose software that fits

Since software is everything you use, choosing well matters (see our guide). Use apps and software that fit your needs, from reputable sources, and keep them updated (see our updates guide). Good software choices make your devices more useful and secure.

📌 Bottom line

Software is the instructions that make hardware useful — the programs, apps and systems you use. It includes the operating system, applications, system utilities and cloud services. "App" and "software" basically mean the same thing — programs — with "app" usually used for phone programs and smaller applications. Choose software that fits your needs from reputable sources, and keep it updated. Understanding software demystifies the programs you use every day.

Nina Patel

Productivity & apps writer

Part of the HighTechBee editorial team. Nina Patel writes practical, beginner-friendly tech guides that solve real everyday problems.