Reflector is popular because you can share any device to the screen, what you don't get is the touch marks and the interactions with the application, which is why many love things like Mr.tappy above. Which if needing a more affordable option, I have developed a bit of a hack for it to get a mobile recording device for about $100-150.
My colleague just shared lookback.io with me yesterday, we were playing around with it, and it's pretty nice. You just need your participant to download the lookback app to participate in your study. It records the mic and the video off the screen and seems to record touch points on the screen.