# How much do Score Killers cost? > Canonical: https://pinflag.io/answers/score-killers/how-much-do-score-killers-cost On the published tables a tee shot out of bounds on a 400 yard hole costs 2.05 strokes, a three-putt from 20 feet 1.12 and one from 40 feet 0.94. Each is a full stroke or more on its own, which is why one fewer per round is worth more than any range session. Topic: Score Killers and the round breakdown, https://pinflag.io/answers/score-killers ## 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.