Astro Gold v9 will run on any device that runs iOS14.0 or higher.
Note that the iOS version requirement will change from time to time as Apple releases new iOS versions which make it hard to continue supporting older iOS versions. Users should view the Apple app store entry for Astro Gold to be sure to have the latest requirements.
Also note that those who purchase Astro Gold for the their current devices will be able to continue using it indefinitely, although unless they keep sufficiently up-to-date with Apple’s new iOS releases, they may eventually lose the ability to download future updates to the Astro Gold app.