I went back in to my app store from my ipod and this time it had a download from "cloud" instead of the regular install option. When I selected the cloud button, pop up window came up that said it would download the older compatible version I selected aggree/ok. It worked and downloaded just fine.
I am trying to download spotify onto an old ipod 3rd gen w ios 4.2.1 I tried the following advice and it does not work. when trying to download spotify, it just gives me the error message that i need to have at least IOS 8 or higher to download - and then it kicks me out.