This is not an application, but the cell phone network information lumia which can in appropriate settings of your mobile phone capabilities Lumia.
To open the default, could you try with dialing ' ## 3282 # '. Finish typing the sign #, automatically you will Redirectly to field test.
Some settings insides:
Poll frequncy (second), UMTS Band, network Type, Limit SMS Storage, Toggle ENS (reboot requirment), Toggle CMAS RMT (reboot requirment).