To turn a video into an audio file on your iPhone, you'll need to download a third-party app from the App Store.

You can play MP3 files on an iPhone using four methods: the Files app for direct playback, Apple Music to sync files from a Mac, third-party apps like VLC for more features, and cloud storage services ...

On an iPhone, downloaded files are typically saved in the Files app under the “Downloads” folder, accessible via iCloud Drive or “On My iPhone.” Photos and videos go to the Photos app, while music, ...