Stats & insights companion for GSPro.

Reads every shot the moment it lands and turns your rounds into the strokes-gained, dispersion, and gapping insights that actually move your scores.

Desktop app for your Windows sim PC Any GSPro-connected launch monitor 7-day free trial
Click any club, round, or shot Same screens you get on day one Read-only — nothing you do here is saved
What it tracks

A deeper layer on top of every round.

GSPro runs the round. GSCaddie keeps the memory. Every shot indexed, every club gapped, every round compared to the last.

01 · Strokes gained

The single headline metric for round quality.

See where each round leaks strokes. Off the tee, on approach, around the green, on the putting surface. Scored against a PGA Tour baseline, with a handicap-aware shift so you're not measured against scratch.

Strokes-gained breakdown
02 · Dispersion

Typical and spread zones, per club, per shot type.

68% and 95% ellipses fit to your actual shot cloud. Spot the miss pattern, then take one specific thing to the range.

7-iron dispersion plot
03 · Vs your average

Every round, scored against your own baseline.

Green beats your average, red trails it. Each round compared against your own running baseline across every prior round you've played.

Vs your average deltas
04 · Club gapping

Every club, mapped. Spot the dead zones.

Average carry plus standard deviation for every club in your bag. Surfaces overlaps and gaps so you know which clubs you're actually dialing in.

Club gapping table
05 · Insights & drills

A clear story for every round.

Rule-based pattern detection on your ball and club-delivery data, calibrated against PGA tour benchmarks and D-plane ball-flight law. Faults that fire across multiple clubs collapse into one "across the bag" card, each paired with a hand-vetted drill and coaching cue.

Insights and drills
06 · Live round

Watch every shot land, live on a second screen.

Shots appear the moment the LM fires. A live caddie view with per-shot strokes gained, an approach read ("had 147 in, finished 8 ft"), and a what's-working callout. Stand your phone on the mat for the landscape view and glance between swings without crowding the sim.

+0.24 per-shot SGapproach readwhat's workingphone-on-stand
GSCaddie · Live
Live caddie view
Live, phone on a stand
07 · Range & practice

Practice sessions get their own caddie view.

Per-club carry, spread, and consistency. Session bests, shape breakdown, and a warm-up read on whether your speed held from the first shot to the last.

Range session
08 · Trend alerts

Catch a leak before it costs you.

Every club tracks its own trend across rounds: carry, club speed, attack angle, face-to-path, ball speed. When a number drifts, GSCaddie surfaces it so you fix it early.

Per-club delivery trends
09 · Import history

Your last rounds, in from day one.

Connect the GSPro Portal and pull in up to your last 10 completed rounds, straight into GSCaddie. Scores, fairways, greens, putts, and every shot's ball and club data come across, matched to the Portal exactly, so your dashboard, trends, and gapping have history to work with before your first live shot.

Import up to your last 10 rounds from the GSPro Portal
10 · Share card

A round in a single frame.

Auto-generated recap for every round. Course, score, key rates, headline stat. Share with coaches or brag to your friends.

11 · Household ready

Track the whole family bag.

Multi-player rounds are attributed per-player automatically. Each player gets their own bag, gapping, history, and Insights, kept separate from yours.

How it works

Install once. Open it like an app.

GSCaddie runs on your Windows sim PC and picks up each shot the moment GSPro records it. Nothing intercepted, nothing modified. It sits alongside your sim, not inside it.

01

Install GSCaddie

Signed Windows installer with one-click sign-in right inside the app. Auto-updates in the background. Works with your standard GSPro setup out of the box.

≈ 30 seconds
02

Play your sim like you always do

Open GSPro, warm up on the range or tee off a round.

Any LM · Any round
03

Watch your stats fill in live

Strokes gained, shot shape, per-club go-to profile, dispersion. Every shot lands in your caddie view the moment it's hit, on the sim screen or your phone on the stand.

Live sync
04

Review the round after

Every round gets a full overview: score, strokes-gained breakdown, scorecard, shot-by-shot drill-down, share card.

Full round history
Compatibility

If it talks to GSPro, it works.

If your launch monitor pairs with GSPro, every shot feeds into your dashboard. Ball data lands live from your sim PC; club delivery flows in from the GSPro web portal once you connect it.

GSCaddie pulls from two sources. Ball-side data (ball speed, launch, spin, carry, dispersion) comes from the local sim computer every LM writes to: fast, real-time, no extra setup. Club delivery (club path, attack angle, face-to-target, smash factor) comes from the GSPro web portal, which you connect once during onboarding, right inside the app.

Connect the portal to unlock path / AoA / face fault detection in Insights. Skip it and every ball-side metric still works: strokes gained, dispersion, gapping, shot shape, share cards.

Pricing

One plan. Everything.

$12 a month or $99 a year. Every feature, every GSPro-connected launch monitor, unlimited rounds. Start with a 7-day free trial and cancel anytime.

$12/mo, or $99/yr and save $45 a year.

7-day free trial. You're not charged until it ends, and you can cancel anytime before then.

Start for $0
Questions

Straight answers.

Does GSCaddie interfere with GSPro or modify any files?
No. GSCaddie is strictly read-only. It never writes back to GSPro, modifies your install, or runs as a kernel driver. It's a companion, not an overlay or a mod.
Is it a background app, or something I open?
Both. GSCaddie installs as a desktop app on your sim PC and keeps a system-tray presence that captures shots in the background. Click it open any time for the full dashboard, or pull up the same view on your phone on the stand. Sign-in and the GSPro portal connect both happen right inside the app, no copy-pasting links.
Is the installer signed, or will Windows warn me?
The installer is code-signed by M5 Software Solutions, LLC, so it installs cleanly. New signing certificates build reputation with Microsoft SmartScreen over time, so you may briefly see a "Windows protected your PC" prompt on the very first installs. Click More info → Run anyway; it goes away as the certificate ages.
Will it keep working as GSPro evolves?
That's the goal. GSPro is actively developed and we monitor releases. GSCaddie auto-updates in the background: when a log format changes we ship a patch and your install picks it up on the next poll. We don't promise zero-downtime, but you won't have to chase the fix yourself.
Mac or Linux support?
Not planned. GSPro is Windows-only, which means sim owners are on Windows. We'd rather be great on one platform than mediocre on three. The mobile dashboard works in any phone browser.
Is my shot data private?
Yes. Shots are stored in your own account on our cloud backend, isolated by row-level security so no other user can read your data. We never sell, aggregate-anonymize, or share it. Until self-serve export and deletion ship, email hello@gscaddie.com and we'll send you everything we have or wipe the account on request.
How is strokes gained calculated?
We use a PGA Tour expected-strokes baseline derived from public sources (Mark Broadie's research) and adjust upward based on your handicap, so each shot is compared to peers rather than to pros. You can set your handicap in Account or let it auto-detect from your scoring history. As more rounds get logged across users, we'll calibrate amateur baselines empirically.
Can I use it with multiple players on one sim?
Yes. Multi-player rounds are attributed per-player automatically. Each player gets their own bag, club gapping, history, and Insights tab.

These are the highlights. The Wiki has the full docs: every screen, how each metric is computed, launch-monitor setup, and troubleshooting.

Browse the Wiki →
Ready when you are

Stop guessing. Start gaining strokes.

Take the full interactive demo for a spin, then create your account. Real data flows through every screen.

Desktop app · Windows 10 + 11 · Caddie view works on any phone