PinFlag features

The PinFlag iOS app is built around live, on-course decision-making — every feature below is real, shipped code, described exactly as it works. The coach and facility platform is live on the web today.

Live Strokes Gained

See the strokes-gained impact of any target before you commit — live, on the hole you’re standing on.

On-Course HUD

A GPS-aware heads-up display on real satellite imagery — aim, distances, lies, pins, and penalties in one thumb.

Shot Tracking & Round Logging

Frictionless mid-round logging that builds your on-course dataset — offline-first, undoable, honest.

Launch Monitor Import

Bring your range numbers on course — Trackman, Garmin, and Rapsodo files, or any monitor via mapped CSV.

Course Preview

Rehearse the course before you play it — no GPS, no round, same HUD.

Coach Platform

Develop a roster and prove improvement — strokes-gained review, lessons, assignments, and progress reports.

Facility Platform

Program-wide oversight for academies and teams — pooled rosters, team analytics, qualifying.

Under the hood

The technology pages explain what the features stand on — start with how PinFlag works.

Strokes-Gained Engine

A frozen, hash-verified engine built on Mark Broadie’s published expected-strokes baselines.

Course Geometry

Commercial course geometry data, combined with operator-verified courses — validated before it can back a number.

Data Honesty

On a verified course, every number is real, traceable, and disclosed.

Apple-Native Course Mapping

A native Apple MKMapView under the entire on-course experience — not a web map.