The grandfather of digital downloads. Apple’s store uses AAC files (which work exactly like MP3s on iPhones and Androids).
However, I can offer a helpful alternative: Here’s a short of legal ways to access Simple Plan’s music, which you could use as a reference or guide. simple plan mp3 download
The good news is that you can absolutely download Simple Plan’s music as MP3 files legally. Here are the best platforms: The grandfather of digital downloads
Simple Plan has used Bandcamp for exclusive releases, live sessions, and charity singles. This platform gives you unlimited streaming plus instant MP3, FLAC, or WAV downloads with your purchase. or WAV downloads with your purchase.