Bluetooth Finder : Lost Device

The problem with this app, and probably most of the apps like it, is that it cannot actually name the source of many of the signals it is receiving. I bought the app, ran it, and looked for a specific device. It listed probably 30 devices and more than half of them were simply identified as “unknown device”. I may be able to use it to find my Fitbit, but it’s going to take a very long time because I will have to try each of the signals to see if that’s the one I’m really looking for. I’ll be walking around the house all day!