Family Sharing allows you and the other members of your household to share iTunes, App Store, and iBooks purchases across all your devices, without having to purchase them multiple times. While most app developers support Family Sharing, Apple gives them the option to opt out if they choose. Luckily, there's an easy way to find out if specific apps are eligible for Family Sharing. Here's how!

How to tell if iOS apps are eligible for Family Sharing

Launch the App Store on your iPhone or iPad. Search for the app you'd like to view sharing information on. Tap the app to view information about it. Scroll down to the Supports section. If Family Sharing is supported, it will say so.

How to tell if Mac apps are eligible for Family Sharing

Launch the Mac App Store on your Mac. Search for the app you'd like to buy or have already have purchased. Click the app to view its information. Under the Information section off to the right, you should see whether or not the app is eligible for Family Sharing.

Alternatively, if you'd like to view a quick list of all the apps you've already purchased on your Mac, click on the Purchased tab in the top navigation and scroll through the list of purchased apps. You should see a Not Shareable label next to any apps that don't currently support Family Sharing.