Just days after detailing the first Bluetooth 4.0-enabled iPhone accessory and app, Apple approved another application that takes advantage of the low-power standard. This time it’s the first Bluetooth 4.0 heart rate monitor app approved by Apple for use with Bluetooth smart and SmartHRM accessories.

Available in the App Store for $1.99, CardioMapper provides “full real time and post exercise analysis” with statistics for the typical calories, distance, duration, speed, and pace. It will allow a user to track burned calories using the iPhone’s GPS, but the real benefit is the ability to connect to the latest Bluetooth 4.0 SmartHRM and Bluetooth Smart accessories. That will allow a user to track heartbeat rhythms, and there is also a live GPS accuracy indicator to make sure a user stays on route during a workout.

The company promises to show off some of the accessories and new Bluetooth smart accessories at CES 2012. However, the app’s iTunes page does warn: “Continued use of GPS running in the background can dramatically decrease battery life.”

Here is more information about how the app works: