With the fenzta HOME app, you can configure your own window as you wish and view it in your own room via augmented reality (AR). Optionally, you can also use a marker and place it on your window to be replaced by your desired window. For older Android devices, we always recommend the marker, as the recognition of your walls could be problematic due to the hardware.** Permissions- Internet access: The app uses internet access to talk against our servers in Frankfurt to authenticate you, register you and drop your windows.- Camera: The app uses camera access to give you the augmented reality experience with your window.