Although the light does seem bright when using the app, this perception is due mainly to the contrast to the dark - hence the importance of finding a dark space. The peak light intensity 7cm from your eyes is still only around the brightness of a cloudy day, with closed eyes further reducing this brightness by 90-95%. Exact photobiological safety standards are specified in IEC 62471, which must be met by all phones, with risk further reduced by flickering of the light. As long as you are keeping your eyes closed during the experience and are not looking directly at the torch when it is on, we see no evidence to suggest that Lumenate causes damage to your eyes.
However, if at any point you do feel uncomfortable, it's best to stop the experience. Your comfort and wellbeing is our top priority. ❤️