For the best results it is recommended to use the Safari browser when downloading to your iPhone.
Many of our users have also reported using Dropbox as a simple and effective method for using the music on their mobile device. Select the option to download the track and then save to Dropbox. In Dropbox, click on the 3 dots next to the song and "Export" to the app of your choice.
If this doesn’t work or you find an alternative solution, please feel free to reach out to us.