Love the idea, but many bugs – Thirty Day Fit Review

I love the motivational sayings, and the idea of just 30 days, but the app won't let me go to the next day after I'm done with that day's exercises. Afterwards, it'll give me a notification saying that I missed a few days. I have an iPhone 5s so the device is not out of date or anything, if the app gets fixed it would be great!!
Review by Icons retysh on Thirty Day Fit.