Turtle Sport is described as 'Open source software developed to communicate
with GPS devices : Garmin, Suunto, etc. The following
functions are available:' and is a Run Tracker in the sport & health category. There are more than 25 alternatives to Turtle Sport for a variety of platforms, including Android, iPhone, Apple Watch, Android Tablet and iPad apps. The best Turtle Sport alternative is ASICS Runkeeper, which is free. Other great apps like Turtle Sport are Miles - Running Tracker, Run&Grow, Zombies, Run! and RunnerUp.