Mixing Station X Air is a free Android app developed by davidgiga1993 that allows users to remotely control their Behringer X AIR series mixer with their smartphone or tablet. It is important to note that this app does not play any sound, it is solely for remote controlling purposes.

The app comes with a range of features, including RTA overlay in PEQ view, RTA averaging, level timeline for gate and dynamics (pro version), peak hold for all meters with changeable hold time (pro version), Peq preview in channel strip (pro version), high contrast mode for outdoor usage (pro version), popgroups (pro version), routing matrix, create unlimited DCA groups (IDCAs), customizeable layer, channel order and mutegroup labels, up to 32 channels visible channels per layer, and direct email support.

Overall, Mixing Station X Air is a useful app for those who own a Behringer X AIR series mixer and want to remotely control it with their smartphone or tablet.