# How does PinFlag price an approach shot? > Canonical: https://pinflag.io/answers/approach-play/how-does-pinflag-price-an-approach-shot From the lie you are in, the distance to the pin you placed and your own dispersion around the aim. From 150 yards the published baseline is 2.945 strokes from the fairway, 3.190 from the rough and 3.250 from the sand; PinFlag reads the lie from the course map, spreads your pattern over the green and its surround, prices every finish from the tables and shows the strokes gained of the target before you swing. Topic: Approach play in PinFlag, https://pinflag.io/answers/approach-play ## 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.