Currently there is no way to download single MP3s to an iOS device. However you are able to stream them through Safari.
If you wish to download the content you will need to download the ZIP files and due to this we are working through adding all of our content to ZIP files for you. The process is as follows:
In Safari select the ZIP file that contains the MP3s. This will start to download the document. This step can take a long time – and make sure you are on Wifi!
Eventually you will see a page like below:
Select Save to Files.
From here you should be able to select On My iPad / On My iPhone or iCloud Drive. We selected iCloud Drive.
The window will disappear and you can then open the Files app. You will see a screen like this:
If you select the ZIP file it will load it up with the ‘blank’ ZIP logo in the centre like the below:
From here select Preview Content. This will open the ZIP and take you to the first file within it. This can take a while to do on an iPhone.
Finally, you can select the list icon to see all of the ZIP files. This is located in the top left on an iPad and at the bottom of the screen on an iPhone.