I like the Siren app for the BCD536HP, I just wish that it wouldn't crash so easily. I run it in AP mode, with an old Samsung Galaxy S2 to run the app. On average, it will run OK for about 20 to 40 minutes before crashing, but sometimes as little as 3 minutes and (rarely) as long as two hours before it crashes. Is this about the same results as others have had with the Siren app, as far as the length of time from start up until the inevitable message "No scanner found at that address"?