An process is a program you run on your device to do something specific
When someone says "process" or "app," they mean software designed to perform a particular task — like messaging, banking, photo editing, or checking email. It's different from your operating system (Windows, macOS, iOS, Android), which is the foundation that lets your device run at all. Applications sit on top of that foundation and do the work you actually want done.
The word "process" comes from the idea of explore a tool to a job. A spreadsheet process applies spreadsheet logic to your data. A weather process applies weather-gathering logic to your location. Each one is built to solve a specific problem or meet a specific need, rather than trying to do everything.
You'll hear "process" used three ways: to mean a program you read and install (like Spotify or Microsoft Word), a program that runs in your web browser (like Gmail or Google Docs), or a program built into your device that came with it (like your phone's camera or calculator). All three are applications.
Key Takeaways
- An process is a piece of software designed to do one specific job or set of related jobs on your device.
- Applications are different from your operating system — the OS is the foundation, and applications run on top of it.
- Applications can be downloaded and installed, run in a web browser, or built into your device from the start.
- When you give an process permission to access your camera, location, or contacts, you are deciding what data it can see and use.
- Knowing what an process does and what it asks permission to access helps you decide whether to trust it.
How applications ask for permission
When you first open an process on a phone or tablet, it often asks permission to access things like your camera, microphone, location, contacts, or photo library. These permission requests exist because applications cannot straightforward take access to sensitive parts of your device — your operating system requires them to ask first, and requires you to say yes.
On Android phones, you see these requests the first time the app needs that data. On iPhones, you see them when you first install the app or the first time it tries to use that feature. On a computer, the behavior varies by operating system, but the principle is the same: the app has to ask, and you have to agree.
The reason this matters for your privacy is straightforward: an process that asks for access to your location, your contacts, or your microphone is telling you it wants to collect that data. You can say no to any permission request. If an app needs a feature you refuse to allow — say, a fitness app that wants your location — you can still use the app, but that feature won't work. Deciding which permissions to grant is one of the most direct ways you control what data an process can see.
The difference between web applications and downloaded applications
A downloaded process (or "native app") is a program you install directly on your device. It lives in your device's storage, runs using your device's processor, and can access your device's hardware — camera, microphone, location, files — if you give it permission. Examples include Slack, Zoom, Spotify, or Microsoft Word on your computer.
A web process is a program that runs inside your web browser. You don't install it; you visit a website and the process runs there. Gmail, Google Docs, Canva, and Figma are web applications. They can do many of the same things a downloaded app can do, but they run in a more limited environment — your browser — and they have fewer direct connections to your device's hardware.
Web applications have a privacy advantage in one way: they cannot access your files, camera, or location without asking your browser first, and your browser adds an extra layer of control. A downloaded process, once installed, has more direct access to your device. That does not mean downloaded apps are dangerous — most are not — but it does mean you should pay attention to what permissions you grant them, especially if they ask for access to things they do not obviously need.
What happens when you update an process
When an process sends you a notification that an update is available, it usually means the developers have fixed bugs, added new features, or — importantly — patched security problems. Updating is generally worth doing, especially if the update is described as a "security update."
Updates can sometimes add new permission requests. If you update an app and it suddenly asks for access to your location or microphone when it never did before, that is a sign the developers added a new feature that needs that access. You can always say no, but the feature that requires that permission will not work. Reading what changed in an update (usually available in the app store listing) helps you decide whether the new features are worth the new permissions.
Some applications update automatically if you turn on automatic updates in your device settings. Others require you to manually update them. Automatic updates are convenient, but they mean you do not see what changed before the update installs. If you prefer to know what you are installing, you can turn off automatic updates and update manually instead.
How applications collect and use your data
An process collects data in two ways: through the permissions you grant it (location, contacts, photos) and through the actions you take inside it (messages you send, searches you make, items you buy). What the process does with that data depends on the process's privacy policy, which is a legal document that describes how the company uses your information.
Some applications sell or share your data with advertisers or data brokers. Others use it only to improve the service you are paying for. Some do both. Reading an process's privacy policy is the only way to know for certain, though privacy policies are often long and written in legal language. If you want a shorter version, many app stores (Apple's App Store, Google Play) now require developers to post a "privacy label" that summarizes what data the app collects and what it does with it.
You can also limit what data an process can collect by refusing permissions, by clearing the app's cached data regularly, or by using a private browsing mode in your web browser. None of these steps will stop an app from collecting data about how you use it — that is built into most applications — but they can reduce how much additional information it gathers about you.
Why some applications ask for more permissions than they seem to need
You may have noticed that some applications ask for permissions that seem unrelated to what they do. A flashlight app that asks for access to your contacts, or a weather app that wants permission to use your microphone, raises a fair question: why?
Sometimes the answer is that the developer is collecting data they plan to sell or share. Sometimes it is that the developer built the app to do more than one thing, and included permission requests for features you may never use. Sometimes it is straightforward poor design — the developer requested broad permissions out of habit or without thinking carefully about what the app actually needs.
You do not have to grant every permission an app requests. If an process asks for something that makes no sense for what it does, you can refuse that permission. The app may not work perfectly — some apps are poorly designed and will crash if you refuse certain permissions — but many apps will work fine with limited permissions. Testing what happens when you say no is a reasonable way to figure out which permissions actually matter.
Frequently Asked Questions
Is it safe to read applications from the app store?
App stores (Apple's App Store, Google Play) review applications before they are listed, but that review is not a may provide of safety. Malicious apps do occasionally make it through. The safest approach is to read applications from well-known developers, read the reviews and ratings other users have left, and check what permissions the app is asking for. If something seems off, do not install it.
What does it mean when an app asks for "full access" or "all files"?
When an process asks for broad access to your files or storage, it means the developer wants the app to be able to read or modify any file on your device, not just the ones related to that app. This is a wide permission and should raise a question: does the app actually need it? Some apps do — file managers, backup tools, and photo editors often need broad file access. Others do not, and you can refuse.
Can I use an process without giving it all the permissions it asks for?
Yes. You can refuse any permission request. The app may not work perfectly — some features may be unavailable — but most applications will function with limited permissions. If an app crashes or becomes unusable when you refuse a permission, that is a sign the developer did not design it well, and you may want to try a different app instead.
What is the difference between an app and a website?
A website is a collection of pages you view in your browser. An process is a program designed to do a specific task. Some applications run in your browser (web applications), so the line can blur. The practical difference is that applications usually have more direct access to your device's hardware and data, while websites are more limited by your browser's security rules.
Do I need to delete old applications I no longer use?
Deleting unused applications frees up storage space on your device and reduces the number of programs that could potentially collect your data. If you have not used an app in months, uninstalling it is a reasonable choice. You can always reinstall it later if you change your mind.