Get more apps on Apple Watch
Your Apple Watch includes apps for a variety of communication, health, fitness, and timekeeping tasks. You can also choose to install third-party apps you have on your iPhone, and get new apps from the App Store, either on Apple Watch or from your iPhone. All your apps are on a single Home Screen.
Note: To automatically download the companion iOS version of an app you’ve added to your Apple Watch, open the Settings app 
on your Apple Watch, tap App Store, then turn on Automatic Downloads. To get the most recent versions of your Apple Watch apps, make sure Automatic Updates is also turned on.
Get apps from the App Store on Apple Watch
Open the App Store app
on your Apple Watch.Turn the Digital Crown to browse featured apps and collections.
Tap a collection to see more apps.
To get a free app, tap Get. To buy an app, tap the price.
If you see
instead of a price, you’ve already purchased the app and you can download it again without a charge. Some apps require that you also have the iOS version of the app on your iPhone.
To find a specific app, tap 
at the top left of the screen, then type (on supported models only, not available in all languages) or use Scribble or dictation to enter the name of the app. You can also browse trending categories of apps by tapping a category.
To use Scribble on these same supported models, swipe up from the bottom of the screen, then tap Scribble.
Note: When using Apple Watch with cellular, cellular data charges may apply. Scribble is not available in all languages.
Install apps you already have on iPhone
By default, apps on your iPhone that have a watchOS app available are automatically installed and appear on the Home Screen. To instead choose to install specific apps, follow these steps:
Open the Apple Watch app on your iPhone.
Tap My Watch, tap General, then turn off Automatic App Install.
Tap My Watch, then scroll down to Available Apps.
Tap Install next to the apps you want to install.
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