CoolRunner is the best application for iPhone and iPod for outdoor running and fitness.

With CoolRunner you can track all your runs and your workouts and analyze your progress.

Features:
- Splendid interface all in one screen super simple to use
Integrated GPS, automatically records your route, speed, distance and altitude!
- Using an external heart rate monitor you could monitor your heart rate during your runs.
- Integration with popular social networks (Facebook, Twitter).

Compatible with heart rate monitors Masqott and runalyzer.

Continued use of GPS running in the background can dramatically decrease battery life.