I feel so humiliated writing this, but this app unfortunately doesn't work! However the concept is very smart, but this app doesn't work. I had a fly that kept buzzing around by me and I used the app but the fly continued to buzz around me. All this app is useful for is people who are intrigued by advertisements, this app has loads of ads. This app doesn't deserve even a star, if I could I would give it a grain of sand instead.