FTP explains your threshold — W' explains why repeated attacks crack you faster than a steady effort. Bike Analytics turns the watts your power meter already records into Critical Power, W', and the pacing decisions that come from them. Calculated locally on your iPhone.
FEATURES
Why do two riders with the same FTP race so differently? W-prime balance and Critical Power add what a single number leaves out — your real ceiling and your finite capacity to ride above it.
7 personalized zones calibrated to your own FTP — so every interval has a clear purpose, not just a number to hit.
Turn your weekly numbers into a plan: chronic and acute load, plus a form score that tells you when to push and when to recover.
CdA estimation and drag analysis that translate your position and effort into real speed — for road and time trial alike.
See whether your numbers are actually trending up — weekly, monthly, yearly — with automatic peak detection, not just a folder of past rides.
No cloud, no account, no monthly fee just to see your own power data. Everything stays on your iPhone.