My wife has lost her Fitbit charge 3 times since I bought it for her in late January. She found it the first time at our daughters house. I found it the second time just retracing her whereabouts here in the house. This time however, I figured if we did find it that it would be ruin because she was planting flowers outside and she was everywhere! I tried syncing it to her iPod and to my surprise it synced! That gave me hope that it was in the house and not outdoors being rained on. I found this App and read the reviews so I immediately purchased it. Within 10 minutes of downloading the App we found it in my closet where she had hung up newly washed shirts! This App is absolutely amazing!!!! Thank you so much!