# Why do PinFlag’s numbers match between the phone and the website calculators? > Canonical: https://pinflag.io/answers/accuracy/why-do-pinflags-numbers-match-between-the-phone-and-the-website-calculators Because they price from the same published tables. Put a lie, a distance and a finish into the strokes gained calculator on pinflag.io and the figure is the figure the app shows for that shot, so anyone can check a PinFlag number in a browser before they trust it on the course. 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.