I want to like this app because I loved the Couch to 5k predecessor... but they havent been clear on the difference between a jog and a run. Couch to 5k build you up to a point where youre jogging 30 minutes... and now, suddenly, on Day 2 of this new app Im being directed to "run" for 30 minutes. What does that mean? On Day 1, I was told to run for jog for 10 minutes, run for 3 minutes, and jog for 10 minutes. I made it 2.5 minutes before I had to slow to a jog. So, what kind of jump is that? Am I supposed to jog a little harder? Or am I supposed to run like my house is on fire? What constitutes a difference between a jog and a run that is sustainable for 30 minutes straight? Perhaps Ive been running this whole time and thought I was jogging, I just cant imagine going faster so soon when Ive just become comfortable with a 30 minute "jog". Perhaps if the app recognized your typical jogging pace and encouraged you to hit a new benchmark by going 6mph instead of your usual 4mph, for example. That would help clarify what Im supposed to do today, because frankly Im stumped and dont want to burn out too soon.