FYI: It's not compatible w/ all Brother WiFi printers. Be sure to hit the App Support button to find out if your model is compatible.
My take on this app is it adds one more step to print something. iPrint Activator is still a better free printing solution IMHO since it works with AirPrint.
Agree with above. My trusty HL-1440 is unfortunately not supported. Back to Airprint Activator... if only the drop of my printer (no printer found) after a few hours can be solved.