Go Couch to 5k now has a free-to-try sibling app. :)
Look for Try Couch to 5k on the store and try it out before deciding is it a good fit for you. First two weeks of the program are free – I believe this is plenty of time to test the app out. All the great features from Go Couch to 5k (which is still available for sale) are there – GPS tracking, wonderful visuals, rich sharing options including dailymile, Facebook and Twitter – so download and let us know what you think.