A method, a mobile device, and a computer-readable recording medium for a location-aware application are provided. In the method, at least one signal source around the mobile device and a signal strength thereof are detected by using a signal detecting module. Then, each detected signal source and the signal strength thereof are compared with a signal source and a signal strength thereof recorded in multiple system profiles, so as to find a system profile having matched signal source and signal strength, in which the system profiles include signal sources and signal strengths thereof which are recorded and detected by the mobile device at multiple different locations and a system setting of the mobile device applicable to each location. Finally, a system setting of a matched system profile is executed.