From Performance Designed Products:
***Please Note: This application requires the GOtality Cardio Fitness Pack Heart Rate Monitor (from www.gotality.com) accessory in order to work. Please don't download it if you don't have the hardware pack! You can, however use the full-featured (and also free) GOtality Cardio app, also available on the App Store, with many functions on that app working without the hardware. ***GOtality Cardio Fitness Pack Express is the perfect companion to GOtality Cardio Fitness Pack for the iPhone and iPod touch. For those who don't want or need the full functionality of the GOtality Cardio Fitness App, this Express version offers the ability to track real-time heart rate (via the GOtality Cardio Fitness Pack Heart Rate Monitor accessory) and calories burned.