I really like the app. I would like you to consider adding coding for the use of voice over. I have a vision impaired friend who loves the app once running, but without the voice over functionality, it is quite difficult for her to get things set up right. She is well connected with the visually impaired community, and believes that if this function were added, it would be highly desirable among her friends. Many doctors have recommended the use of VR to their vision impaired patients as a method of strengthening visual acuity.
In addition, I recommend you add mag button functions to do the re-centering and lock screen functions.
Finally, your web page is non-functional.
NRBach about VRPlayer Pro : 2D 3D 360°Video, v2.1.5