I tried this app for the first time and loved the way the video was designed and organized. I was excited I could mark the difficulty or ease with each pose. I couldnt wait to get into it on day two. Day Two - Ready to go and I couldnt go back to the beginner video unless I paid. Is this a one time, free video and a useless app unless you upgrade? Reviews arent positive enough to upgrade. Im ready to delete but wanted to ask before I do so?