Last week we reported that Apple hopes to see fitness accessories supporting the Bluetooth 4.0 Low Energy profile come to market soon — and now the iOS heart monitoring app CardioMapper has arrived. Developer Body-Pro claims it is the first app of its kind to support Bluetooth 4.0 in the iPhone 4S, monitoring your heart rate as you exercise with either a Bluetooth Smart or Wi-Fi heart monitor. The app also records your workout route via GPS, with analysis tools, an assortment of virtual coaches, and a high intensity interval training mode also included.

While there are only a handful of Bluetooth Smart heart monitors currently available, we expect that situation to change quickly, with a number of accessories set to debut this year at CES. The app is currently available for $1.99.