IntervalER app for iPhone and iPad

Interval training improves fat burning, reduces insulin resistance, and improves athletic performance. With IntervalER, you can create & save custom interval programs, or just save your own defaults. Set up separate playlists for your slow & fast paces. The music will switch from your slow list to your fast list, while your songs will pick up where they left off as they begin a new set. A simple interface shows the countdown time, elapsed time and total workout time of each set. An audible bell can sound at 5,3,1 seconds before the switch. A vocal countdown of sets 10 & lower can sound at the beginning of each set. When you complete your workout, it automatically saves it to the history. IntervalER - your newest workout tool!