Duet Display is an app that allows you to turn an iPad into a second screen for your Mac. This means that, if you have a Mac of any model and an iPad of any generation, you can use the latter as a second screen according to the plan you choose. The 'Duet Display' plan lets you use the iPad as a second screen as long as it's connected with a USB cable, while 'Duet Air' provides you with more features and removes the need for a cable.
Once you've installed the app on your Mac, all you have to do is set up the iPad by choosing the option that suits you best. However, it's important to keep in mind that you'll need to register (or log in if you already have an account) beforehand in order to access all the features offered by this program. Once you've done so, setting up the iPad as a second screen only takes a few seconds.
Duet Display is a very useful app, thanks to which you can give a second life to older devices by turning them into improvised second screens that are also portable. Depending on your operating system, you may even be able to use some touch features on your new second screen.
