The fastest way: use the Watch app on your iPhone
You add apps to your Apple Watch through the Watch app on your paired iPhone, not directly on the watch itself. Open the Watch app, tap the App Store tab at the bottom, search for the app you want, and tap Install. The app downloads to your watch automatically — you do not need to do anything on the watch itself.
This is the only way to install most apps. Apple Watch does not have its own App Store that you can access from the watch. Every app must come through your iPhone first, even if you never use it there.
Some apps install automatically when you install them on your iPhone. If you open an app on your phone and see an option to Add to Apple Watch or Install on Apple Watch, you can tap it there instead. The result is the same — the app appears on your watch within a few seconds.
Key Takeaways
- All Apple Watch apps are installed through the Watch app on your iPhone, using the App Store tab.
- Some apps install to your watch automatically when you install them on your phone, while others require you to manually tap Install in the Watch app.
- Not every iPhone app has an Apple Watch version, so you may see "Not available on Apple Watch" in the App Store.
- Once installed, apps appear on your watch's home screen or in the dock, depending on how you have organized them.
What happens after you tap Install
After you tap Install in the Watch app, the app downloads and installs on your watch in the background. You do not need to keep the Watch app open. The process usually takes 10 to 30 seconds on a watch connected to Wi-Fi or Bluetooth, though larger apps may take longer.
Once installed, the app icon appears on your watch's home screen. If you have set up an app dock (a row of frequently used apps you access by swiping up from the bottom), the app does not automatically go there — you have to add it manually by long-pressing the home screen, tapping Edit, and dragging the app into the dock.
Some apps require you to sign in or set them up on your iPhone before they work on your watch. For example, if you install a banking app, you may need to log in on your iPhone first, and then the watch version will use those credentials automatically.
Apps that are not available for Apple Watch
Not every app in the iPhone App Store has an Apple Watch version. When you search for an app in the Watch app's App Store tab, you may see "Not available on Apple Watch" below the app name. This means the developer has not built a watch version, and you cannot install it on your watch.
Some apps that do not have dedicated watch versions still send notifications to your watch. For example, you might get a text message notification on your watch even though the Messages app itself is not installed there. You can read and reply to the notification, but you cannot open the full app on the watch.
If an app you want is not available, check back occasionally — developers add watch support to existing apps over time. You can also search the App Store on your iPhone to see if there is a similar app with watch support.
Removing apps from your Apple Watch
To remove an app from your watch, open the Watch app on your iPhone, go to the App Store tab, find the app, and tap Uninstall. The app disappears from your watch within a few seconds. Uninstalling from your watch does not remove it from your iPhone.
You can also remove an app directly from your watch by long-pressing its icon on the home screen and tapping Remove. This does the same thing — it removes the app from your watch but leaves it on your iPhone.
Storage and watch performance
Apple Watch models have limited storage: typically 8 GB to 16 GB depending on the model and year. Not all of that space is available for apps — the operating system and built-in apps take up several gigabytes. If your watch is running low on storage, some apps may fail to install or update.
If you see an error message when trying to install an app, check how much space your watch has left. Open the Watch app on your iPhone, go to General, then About, and look at Available. If you have less than 500 MB free, remove apps you do not use regularly and try again.
Apps that use a lot of data — like music streaming or video apps — may not work well on older watch models. Check the app's description in the Watch app's App Store to see what watch models it supports and what features may be limited.
Troubleshooting apps that will not install
If an app fails to install, first check that your watch and iPhone are connected. Open the Watch app and look at the top of the screen — you should see your watch name and a green dot next to it. If the dot is gray, your watch is not connected, and apps cannot install until it is.
If your watch is connected but the app still will not install, try restarting both devices. Restart your iPhone by holding the side button and either volume button, then sliding to power off. Restart your watch by holding the side button until you see the power-off slider, then slide it. Turn both back on and try installing again.
If the app still fails, check that you have enough storage space on your watch and that the app supports your watch model. Some apps only work on newer watches or require watchOS 9 or later. You can check your watch's software version in the Watch app under General > About > Software Version.
Frequently Asked Questions
Can I install apps directly on my Apple Watch without an iPhone?
No. You must have an iPhone paired with your watch to install any apps. The Watch app on your iPhone is the only way to access the App Store for your watch. If you do not have an iPhone, you cannot add apps to your watch.
Do apps on my Apple Watch take up space on my iPhone?
No. Apps installed on your watch use only the watch's storage, not your iPhone's storage. However, the Watch app itself on your iPhone takes up a small amount of space, and some apps may store data on both devices.
Why does my app keep crashing on my Apple Watch?
Crashes usually happen when your watch is low on storage, the app is outdated, or your watch and iPhone are not connected. Try restarting your watch, making sure it is connected to your iPhone, and checking the App Store in the Watch app for updates to the app.
Can I use the same Apple ID for apps on my watch and iPhone?
Yes. Your Apple Watch uses the same Apple ID as your iPhone. Apps you buy on your iPhone are available to install on your watch at no extra cost, and vice versa.