Great app, takes up some space though – Global Cycle Coach: Your In-Door Cycling App Review

I've had this app now for a couple years and still love it, but it takes up over 3 GB on my iPhone 6, easily five times more than my next biggest program. Can you evaluate using podcasts for classes in the next version? Thanks!
Review by Mr. Deeeelish on Global Cycle Coach: Your In-Door Cycling App.