A universal app runs on all versions of iOS, including the iPad and the iPhone. While the iPad runs most iPhone apps in compatibility mode, universal apps are specifically designed to deal with the varying screen sizes between the iPhone and the iPad.
When the iPad was originally released, many developers released HD versions of their iPhone apps to support the bigger screen on the iPad, but these days, most apps that are released on the app store are Universal apps that work on both the iPad and the iPhone.
Benefits to Downloading a Universal App
One of the great features of the App Store is that if you’ve purchased an app once, you can install it as many times as you want. You can even delete them and then reinstall them later, which is great if you are crunched for storage space and need to free some up to install an update or download a movie. Once purchased, it is always purchased.
How to Tell if an App Is Universal in the App Store
Apple does not provide a clear label for Universal apps, but you find out if an app is universal by scrolling down the details until you see Compatibility, which is just above Languages. If the Compatibility lists the iPhone, iPad, and iPod touch, then the app is universal. If it only lists the iPad or iPhone, it will only work on those devices. However, any iPhone app that pops up on the iPad’s App Store can run on the iPad in iPhone Compatibility Mode.
Do Universal Apps Also Work on Apple TV?
Apple TV finally received its own app store with the latest version, but because of the major differences between Apple TV and the iPad/iPhone, not all Universal apps extend to Apple TV. However, some Universal apps do support Apple TV. These will be noted just below the Compatibility entry on the app details page. Unfortunately, these apps are few and far between.
I Can’t Find an App Downloaded on My Phone in the iPad App Store
Most apps released today are universal apps, but there are still apps designed specifically for the iPhone or the iPad. However, you can still download an iPhone-only app on your iPad and run it in compatibility mode. When you search the app store, there are filters across the top of the screen. In the upper-left corner is an iPad Only filter. If you change this filter to iPhone Only, you can search and download iPhone apps.
I Can’t Find an App Downloaded on My iPad in the iPhone App Store
While the iPad can run iPhone-only apps in compatibility mode, the reverse is not true. The iPhone cannot run an app designed to only run on the iPad. It’s one thing to blow the smaller screen of the iPhone up to the iPad’s size, it’s an entirely different thing to shrink down the iPad’s screen.
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