The fastest way to check for updates

Open the App Store app on your iPhone — the blue icon with a white shopping bag. Tap the account icon in the bottom right corner (it looks like a person's head and shoulders). Tap "App Updates" near the top of the screen. If updates are waiting, you'll see a list of apps with an "Update" button next to each one.

If you see nothing listed, your apps are already current. The App Store checks for new versions automatically, so you don't have to hunt for them manually. But checking this way lets you see what's changed before you decide whether to update right now or wait.

Key Takeaways

  • Open the App Store, tap your account icon in the bottom right, then tap "App Updates" to see which apps have new versions waiting.
  • You can update one app at a time by tapping "Update" next to its name, or update all of them at once by tapping "Update All" at the top.
  • Your iPhone can be set to read and install updates automatically overnight, which you control in Settings under your Apple ID.
  • An app update usually means bug fixes or new features, but occasionally it means the app no longer works on older iPhone models.
  • If an app won't update, check that you have enough storage space and that you're signed into the same Apple ID you used to read it.

Updating one app versus updating all at once

When you're on the App Updates screen, you have two choices. Tap "Update" next to a single app to update just that one. Or tap "Update All" in the top right to update every app on the list at the same time. Both take the same amount of time overall, but updating all at once means you won't have to come back to this screen multiple times.

While an app is updating, you can keep using your iPhone normally. The update happens in the background. You'll see a progress circle next to the app name while it's downloading and installing. Once it finishes, the button changes to "Open" — that means the new version is ready to use.

Setting up automatic updates so you don't have to check manually

Your iPhone can read and install app updates on its own, usually overnight when you're charging and on WiFi. Go to Settings, tap your name at the top, then tap "Media & Purchases." Tap "Automatic Downloads" and turn on the toggle next to "Apps." From then on, new versions will install without you doing anything.

This is convenient if you don't mind apps changing without warning. The downside is that a new version might behave differently than the old one, or take up more storage space. If you prefer to see what changed before updating, leave automatic updates off and check the App Updates screen yourself once a week or so.

What "update" actually means and why apps get new versions

An app update is a new version of the program that fixes problems or adds features. The developer — the company or person who made the app — releases it when they've found bugs (things that don't work right), added something new, or made the app faster or safer. You don't have to update when ready. The old version usually keeps working.

Sometimes an update requires a newer iPhone model or a newer version of iOS (the operating system). If you see an app in the App Store but no "Update" button, and you know you have it installed, it usually means the newest version won't run on your phone. The version you have will keep working, but you won't be able to get the latest one.

Troubleshooting when an app won't update

If you tap "Update" and nothing happens, or you see an error message, check three things first. Make sure you have at least a few gigabytes of free storage — go to Settings, tap "General," then "iPhone Storage" to see how much space is left. If you're almost full, delete photos, videos, or apps you don't use.

Second, make sure you're signed into the App Store with the same Apple ID you used when you first downloaded the app. Tap your account icon in the App Store and check which email address is shown. If it's the wrong one, sign out and sign back in with the correct ID.

Third, try closing the App Store completely and opening it again. Press the home button or swipe up from the bottom to close it, wait a few seconds, then tap the App Store icon again. If the update still won't go through, restart your iPhone — hold the power button until "slide to power off" appears, swipe right, wait 30 seconds, then hold the power button again until the Apple logo shows.

Understanding what you see on the App Updates screen

Next to each app name, you'll see a version number like "5.2" or "12.0.1." This tells you which release you're looking at. A bigger jump — like from 5.0 to 6.0 — usually means something major changed. A small jump — like from 5.2 to 5.3 — usually means a small fix.

Below the app name, you'll sometimes see a short description of what changed, like "Bug fixes and performance improvements" or "New dark mode option." Tap the app name to see the full list of changes if you want more detail. This is useful if you're wondering whether the update is worth installing right now or if you can wait.

When to hold off on updating

You don't have to update an app the moment a new version appears. If an app is working fine for you, waiting a few days or weeks is safe. This gives the developer time to fix any problems that show up in the new version — sometimes an update introduces a new bug that gets fixed in the next release.

The only time you should feel rushed is if you see a security update. If the description mentions "security fixes" or "security improvements," that usually means the developer found a way someone could misuse the app to steal your information. Those are worth installing sooner rather than later. But routine updates for new features or minor fixes can wait until you have time.

Frequently Asked Questions

Do I have to update my apps?

No. Your old version will keep working. But updates often fix problems or add features you might want. If an app stops working or you notice it's slow, updating usually helps. Security updates are the exception — those are worth doing sooner.

Will updating an app delete my data or settings?

Almost never. Updates preserve your saved data, passwords, and preferences. The only exception is if the app itself has a serious problem that requires a reset, which is rare and the app will usually warn you about it.

Why does the App Store say an app has an update but I can't update it?

The most common reason is that the newest version doesn't work on your iPhone model or your version of iOS. Check your iPhone model in Settings under "General" and "About," then look at the app's page in the App Store to see what it requires. If your phone is too old, the version you have will keep working.

Can I undo an update if I don't like the new version?

Not directly. But you can delete the app and reinstall the previous version by going to the App Store, searching for the app, and tapping "Get" — the App Store will install the newest version available for your phone. If you need an older version, you'd have to contact the developer to ask.

What's the difference between an app update and an iOS update?

An app update is a new version of one program you use. An iOS update is a new version of the operating system that runs your entire iPhone. iOS updates are bigger and happen less often. You check for them in Settings under "General" and "Software Update," not in the App Store.