BlackBerry Messenger fans new and old propelled the BBM app to the top of Apple's App Store just a day after its launch.
It is the No. 1 app on the App Store's free apps list. Curiously, as of Tuesday morning, the BBM app hasn't made the same impact on Android's Google Play store, where it isn't listed in the top free app category. But, we don't know how quickly Google Play updates its top free apps list.