Monthly fee required, and you cannot export the files out of the app to use elsewhere. 2. Browser-Based Converters (Best for One-Off Downloads)

Open the YouTube Music app, find your song, and tap the Download button. Pros: Ad-free, supports background play, and is 100% legal.

Downloading YouTube audio on an iPhone is slightly more complex than on a PC due to Apple's strict file management and security policies. However, several effective methods exist, ranging from official subscriptions to safe browser-based tools and automation shortcuts. 1. The Official Way: YouTube Music Premium

The most secure and direct method is using a YouTube Premium or YouTube Music subscription.

If you need an actual MP3 file saved to your device, browser tools are the most popular "free" choice. How to Download Music From YouTube on iPhone