A must have app for interval training

I absolutely love this app! Its a great motivator, good storyline and character development. And my running pace and duration has improved greatly! I dont always enjoy running, but this app has made me look forward to my next workout time and again. And now with the global virtual races I have more motivation then ever to get out and run!

1.2.3.4,5.6.6 about ZRX: Zombies Run + Marvel Move, v4.4.2