Jellyfish Music Player is a convenient app for iPhone users who have a large music library on their computers and want to listen to it on their devices without the hassle of using iTunes Sync. Developed by Telestar, this free app allows you to transfer your audio files from your computer to your iPhone using USB, eliminating the need for iTunes Sync.

To transfer your audio files, Jellyfish Music Player utilizes iTunes' "File Sharing" feature. With File Sharing, you can directly copy files from your computer to the app when your phone is connected via USB. Once the files are transferred, you can organize them into folders within the app, making it easy to navigate and find your favorite songs.

One of the standout features of Jellyfish Music Player is its ability to show how much space each file takes up on your phone. This allows you to manage your storage effectively and remove files or folders directly from the app to free up space whenever needed.

Jellyfish Music Player offers a 30-day trial period, during which you can use the app free of charge. After the trial period ends, you can still listen to the music you have transferred to the app, but you will need to purchase an upgrade to the unlimited version of the app in order to add new music. It's important to note that only mp3 files are supported, and the app cannot play files transferred by iTunes Sync or be played by the Apple Music app.

Please ensure that you legally own all the audio files that you transfer to the Jellyfish Music Player app.