I misplaced my Fitbit yesterday while cleaning my house. Of course panic set in. How can you function without your Fitbit!! I purchase this app, even though it is $6. Fitbit app was still syncing, so I knew the Fitbit is in the house. The Fitbit finder app requires u to disconnect with the Fitbit. I do it grudgingly. Now I start walking with the Fitbit app finder. It keeps scanning. Everytime I get the "cold" result. I probably took more than 10k steps walking slowly trying to find the signal. By the end I was frustrated, mad. And now I cant even see my Fitbit syncing. Hubby sees my plight and walks with the app. No luck. Finally he goes the old fashioned way and scans every room while also the app in his hand. We find the Fitbit in his office area. The app in his hand still can "see" it. So totally wrong! The app does not work. I tested it again keeping the Fitbit right beside it and trying to scan. It does NOT work. Be aware of the reviews please. Dont waste your money.