
Download and install Scriptable - an app that lets you run JavaScript on iPhone.
With JAYD installed on your iPhone, there’s just one more step to complete the setup. This will open the Shortcuts app on your iPhone, where you can review JAYD before installing then, scroll to the bottom and tap the red Add Untrusted Shortcut button. Tap the Get Shortcut button once on RoutineHub via your iPhone, and a second time on the download page. You can now download JAYD from RoutineHub, a third-party gallery for community-created shortcuts. This lets you run shortcuts downloaded from the internet. Head over to Settings > Shortcuts and enable Allow Untrusted Shortcuts. This step is necessary to be able to download and run community-made shortcuts. Go to the Gallery tab and run any shortcut you see there. Download Apple’s Shortcuts app and open it on your iPhone.
This takes a little bit of time to set up initially, but once you’ve done it, you can save music from YouTube with just a few taps. We’re going to use Apple’s Shortcuts app - which is all kinds of awesome if you’re into automation - to make this work. If you want to store songs outside of YouTube’s official apps, there’s a reliable way to do that on an iPhone.