Does X-Ray Serp Affect My Organic Rankings?
X-Ray Serp has no observed impact on organic rankings. Google absolutely knows the overlay is there, but does not currently penalize or otherwise flag it. This is true both with desktop and mobile versions of the webpage, and has been tested following Google's mobile popup algorithm update.
However, because Google's algorithm is an inexact science we cannot guarantee there will be no impact in your rankings. We use it ourselves and have clients using X-Ray Serp as central components of their income strategies who report no impact from using X-Ray Serp URL overlay or QuickSite™.
Obviously we cannot speak for overlays managed using other software, so what one user may report as a negative impact may be the result of different overlay methods used by something other than X-Ray Serp.