Most mobile devices (Android, iOS) have sophisticated built-in accessibility tools that help users with disabilities interact with a responsive website more easily. These tools are built into the operating system and do a better job than the AudioEye Visual Toolkit would at helping anyone with a disability use the site. This is why the Visual Toolkit is disabled and not displaying. Note that accessibility fixes implemented by AudioEye are still applied and active—it is just that no Toolkit entry icon loads.