Why background apps matter and what closing them does
Background apps are programs running on your device even when you are not actively using them. They consume battery, slow down your device, and sometimes collect data about what you do. Closing them frees up memory and processing power, which can make your phone or computer noticeably faster.
The difference between closing an app and uninstalling it is important: closing stops it from running right now, but the app stays on your device. You can open it again later. Uninstalling removes it entirely. For most people, closing background apps is the right move — you get the speed benefit without losing the app.
Not all background activity is harmful. Some apps need to run in the background to work properly — your email app needs to check for new messages, your messaging app needs to receive texts. The goal is to close the apps you are not using while keeping the ones that need to run.
Key Takeaways
- On Android, swipe up from the bottom of the screen to see all open apps, then swipe up on each one you want to close.
- On iPhone, swipe up from the bottom of the screen and pause, then swipe up on each app card to close it.
- On Windows, press Alt+Tab to see open programs, right-click the ones you want to close, and select Close Window.
- On Mac, press Command+Tab to cycle through open apps, then press Q while holding Command to quit the selected app.
- Closing apps regularly keeps your device faster and uses less battery, but some apps like email and messaging work better when left running.
Closing apps on Android devices
On most Android phones, swipe up from the bottom of the screen with one smooth motion. This opens the recent apps screen, which shows all the apps you have used recently and any that are currently running. You will see them as cards or thumbnails.
To close an app, swipe up on its card. The app disappears from the list and stops running. You can close multiple apps this way — just swipe up on each one. If you want to close all apps at once, look for a "Close all" button, usually at the bottom of the screen.
Some Android phones have a slightly different layout. If swiping up does not work, try swiping left or right on the app cards instead. The principle is the same: the gesture removes the app from the list and closes it.
Closing apps on iPhone
On iPhone, swipe up from the very bottom of the screen and pause for a moment — do not swipe all the way up in one motion. You will see the app switcher, which displays all your open apps as cards stacked on top of each other.
To close an app, swipe up on its card. The app closes and disappears from the switcher. You can close multiple apps by swiping up on each card one at a time. Unlike Android, iPhone does not have a "close all" button, so you close them individually.
If you are using an older iPhone with a home button, double-tap the home button instead to open the app switcher, then swipe up on the cards to close them.
Closing programs on Windows
On Windows, press Alt+Tab to see all open programs. A window appears showing thumbnails of everything currently running. You can cycle through them by holding Alt and pressing Tab repeatedly, or by clicking on a program directly.
To close a program, right-click on its thumbnail and select "Close window" from the menu. The program closes immediately. Alternatively, click on the program to bring it to the front, then press Alt+F4 to close it, or click the X button in the top right corner of the window.
You can also open the Task Manager by pressing Ctrl+Shift+Esc. This shows every program running on your computer. Click on any program and then click "End task" at the bottom right to close it. Task Manager is useful when a program is frozen and will not close normally.
Closing apps on Mac
On Mac, press Command+Tab to see all open apps. A row of app icons appears at the top of the screen. Keep holding Command and press Tab repeatedly to cycle through them, or release Command and click on an app icon directly.
To close an app, press Command+Q while the app is selected or in focus. The app closes immediately. You can also click on the app name in the menu bar at the top of the screen, then select "Quit [App Name]" from the dropdown menu.
If an app is frozen and will not close, press Command+Option+Esc to open the Force Quit window. Select the app you want to close and click "Force Quit". This forces the app to close even if it is not responding.
Which apps should stay running in the background
Some apps work better when left running. Email apps need to check for new messages periodically. Messaging apps need to receive texts and notifications. Calendar apps may need to send you reminders. If you close these apps, they will not work properly until you open them again.
Apps that provide location services, like maps or fitness trackers, often run in the background. Navigation apps need to keep running while you are driving. If you close them, they stop working.
The best approach is to close apps you are not using actively, but leave the ones that provide ongoing services. If you are unsure whether an app needs to run in the background, close it and see if you notice any problems. You can always open it again.
When closing apps actually helps your battery and speed
Closing apps has the most noticeable effect on older devices or phones with less memory. If your device is running slowly or the battery drains quickly, closing background apps can help. The improvement is usually immediate — you will feel the device respond faster to touches and taps.
On newer devices with more memory, closing apps may have less noticeable effect. Modern phones and computers are designed to manage background apps automatically, closing them when memory runs low. However, closing apps you know you are not using is still a good habit and does not hurt.
If you find yourself closing the same apps repeatedly, consider uninstalling them instead. Apps that constantly run in the background and drain your battery are probably not worth keeping on your device.
Frequently Asked Questions
Will closing an app delete my data or messages?
No. Closing an app stops it from running, but all your data stays on your device. When you open the app again, everything will be there. Uninstalling an app is different — that removes the app and sometimes its data, depending on how you uninstall it.
Do I need to close apps every day?
Not necessarily. Modern devices manage background apps automatically. However, if your device feels slow or your battery drains quickly, closing unused apps can help. It is a good habit to close apps you are done using, but you do not need to do it constantly.
What happens if I close an app that is receiving a call or message?
If you close a messaging or calling app while it is receiving something, you might miss the notification. For apps that need to stay active, like messaging or email, it is better to leave them running or check them regularly. If you close them, open them again to see if you missed anything.
Can closing apps improve my phone's security?
Closing apps does not directly improve security, but it can reduce the amount of data some apps collect about you. Apps running in the background may track your location or activity. Closing apps you do not need reduces the number of programs that can access your information.
Is there a difference between closing an app and putting my phone to sleep?
Yes. Putting your phone to sleep turns off the screen but leaves all apps running in the background. Closing an app stops it from running entirely. Both save battery, but closing apps saves more because the apps are not running at all.