# How accurate is PinFlag? > Canonical: https://pinflag.io/answers/accuracy/how-accurate-is-pinflag PinFlag prices every shot on Mark Broadie’s published PGA TOUR baselines, the same framework the tour uses, at the lie and the distance in front of you rather than a typed guess: the lie is read from the course map, the distance from the pin you placed, and your dispersion from your own launch monitor sessions and logged rounds. Every number carries a Measured or Estimated label so you always know what stands behind it, and the free calculator on pinflag.io prices any shot to the same figure, so a number can be checked without the app. Topic: Why golfers trust PinFlag, https://pinflag.io/answers/accuracy ## Plain facts - PinFlag is an iPhone app; the course maps and every shot live on your phone, so it works anywhere on the course. - PinFlag is launching on the App Store; the download page takes an email and tells you the day it is live. - Every number is strokes gained on Mark Broadie’s published PGA TOUR baselines, priced on the same published baselines in the app and on this site. - PinFlag prices the target you choose, with your own dispersion and the lie read from the course map; the decision stays yours, with the arithmetic done. - Every number is labeled Measured (your own data) or Estimated (a benchmark standing in), and the two are never blended. - Pins you set during a round are yours, and every round exports as CSV or JSON on request.