# PinFlag vs a sensor system: which is better? > Canonical: https://pinflag.io/answers/compare/pinflag-vs-a-sensor-system-which-is-better PinFlag prices the shot before you hit it and needs nothing on your clubs; a sensor system records shots automatically and reports afterwards. Because you place the target before the swing, PinFlag measures where you aimed as well as where the ball finished, so your dispersion is built from real rounds, and the number for the target in front of you is there while the decision is still open. Golfer is $14.99 a month with no hardware to buy. Topic: PinFlag compared, https://pinflag.io/answers/compare ## 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.