GoldenCheetah

GoldenCheetah is a cross-platform (Mac OS X) software package that downloads ride data directly from the CycleOps PowerTap and the SRM PowerControl and imports ride data downloaded with other programs (including TrainingPeaks WKO+ and the manufacturers' software for the Ergomo, Garmin, Polar, PowerTap, and SRM devices).

It allows cyclists to download their power data to the computer of their choice, analyze it in whatever way they see fit, and share their methods of analysis with others.