My App Keeps Crashing or Freezing: What's Going Wrong and How to Fix It

You tap an app and it opens, then vanishes. Or it opens and the screen just sits there, frozen, while you wait. It is frustrating, but it is also one of the most fixable problems in technology. Almost every case comes down to one of a handful of causes, and the fixes below go from the quickest to the most drastic. Stop as soon as the app works again.

What is actually going wrong?

An app is a set of instructions that your device runs, and it needs a few things to run well: enough working memory (called RAM, the short-term space a device uses for whatever you have open right now), enough free storage, a recent version of the app, and a recent version of the operating system (the main software, such as iOS, Android or Windows, that everything else sits on). When any of these falls short, or when the app's own saved temporary data gets scrambled, the app can stumble. A crash means the app shut itself down after hitting a problem. A freeze means it is stuck and not responding.

Step 1: Close the app and open it again

This sounds too simple, but it clears many one-time glitches. On an iPhone, swipe up from the bottom of the screen and pause, then flick the app away. On an Android phone, open the recent apps view and swipe the app off the screen. On Windows, press Ctrl, Shift and Esc together to open Task Manager, click the stuck app, and choose End task. On a Mac, press Option, Command and Esc and choose Force Quit. Then open the app again.

Step 2: Restart the device

A restart empties the working memory and shuts down background tasks that may have been tangled up. If your phone or computer has not been turned off in weeks, this step alone often solves it. Use the real restart option, not just putting the screen to sleep.

Step 3: Update the app

App makers release updates to repair known bugs. If your copy is old, you may be hitting a problem that has already been fixed. Open the App Store (iPhone), the Google Play Store (Android), or the Microsoft Store (Windows), find the app, and tap Update if the button is there. Many apps also check for updates from their own Settings or Help menu.

Step 4: Update the operating system

Apps are built for current versions of the system. When yours falls behind, newer apps can misbehave. Look for Software Update in your phone's Settings, or Windows Update in Windows settings. Updates also carry security fixes, so this step is worth doing even when nothing is crashing. Plug the device in and connect to Wi-Fi first, since updates can be large.

Step 5: Free up space

A device that is nearly full has no room for an app to do its work, and crashes are a common result. Check your storage in Settings. If it is almost full, delete apps you never use and move photos and videos to cloud storage or a computer. Aim to leave at least a few gigabytes free.

Step 6: Clear the app's saved temporary data

Apps keep small temporary files, called a cache, so they can load faster. Sometimes those files get damaged. On Android, go to Settings, then Apps, choose the app, tap Storage, and tap Clear cache. This is safe and does not delete your information. Avoid the nearby Clear data button unless you are prepared to sign in again, because it resets the app. iPhones do not offer a cache button, so the equivalent is the next step.

Step 7 (last resort): Delete and reinstall the app

Removing the app and installing a fresh copy replaces every file with a clean one. Before you do this, make sure anything important inside the app is saved to your account or backed up, because some apps keep data only on the device. Once you reinstall and sign in, most people find the problem gone.

Common questions

Only one app crashes. Is my device broken?

Almost certainly not. If everything else works, the trouble is with that one app. Search for the app's name plus the word outage, or check its social media page. Sometimes the company's own servers are down and nothing on your side can fix it.

Everything crashes, not just one app. What now?

That points to a device-wide problem: a full drive, an old system version, or a battery or memory fault. Work through the update and storage steps first. If crashes continue, back up your files and contact the maker's support, or visit a repair shop, since the hardware may be wearing out.

Could the app be a virus?

It is possible but uncommon. Apps downloaded only from the official stores are far safer than ones from random websites. Be more suspicious if the crashing began right after you installed something unfamiliar, or if you keep seeing pop-ups. In that case, delete the unfamiliar app first.

The short version

Close the app, restart the device, update the app, update the system, free up space, clear the cache, and reinstall only if you must. Working in that order solves the large majority of crashes without any cost or special skills. If the same app still fails after all of that, the fault is likely in the app itself, and the best move is to report it to the developer through the store's support link.