App comparison · Prices verified Aug 2026
The best AI golf caddie apps, honestly compared
Six real contenders, one table: what each costs, what hardware it wants, how long before it knows your game, and what its math actually does. No affiliate links, no scores out of ten — and one large, disclosed bias.
Full disclosure, before anything else: we're the team behind Monte, a caddie app in this exact category. Read everything below with that in mind. Our promise in exchange: every price checked on the maker's own page in August 2026, every strength stated plainly, and our own product listed last — as a beta you can't even download yet.
| App | Price | Hardware | Cold start — time to personal advice | What the math does | Post-round decision review |
|---|---|---|---|---|---|
| Arccos Caddie | $249.99 sensors (16, 1st yr incl.), then $199.99/yr | Club sensors | Rounds of tracking before its data shines | Auto shot tracking; A.I. rangefinder adjusts for wind, slope, temp, altitude; strokes gained | Deep stats, strokes gained — not decision-vs-execution |
| Noonan | $199/yr or $29.99/mo | Phone + LM data | Fast if you own launch-monitor data to import; manual entry otherwise | 95%-dispersion model per club; club + aim point with wind/elevation; Shot Odds | Round summaries — not decision-vs-execution |
| Shot Pattern | $99/yr or $19.99/mo | Phone only | Builds your pattern from tracked rounds (or LM upload) | Personal dispersion overlaid on the hole; strokes-gained predictor per club × target | Strokes gained per shot — closest of the six |
| Hello Birdie | Free · $47.90/yr Caddie · $99.99/yr Planner | Phone only | Usable at once; distances/dispersions learned over rounds | Automatic per-hole game plan by objective; smart caddie follows the plan | Multi-round analysis on Planner tier |
| Tangent | Free · $79.99/yr Basic · $119.99/yr Pro | Phone / watch | Hands-free detection; patterns build as you play | Max-expected-strokes-gained target; live wind and elevation | Plain-English strokes-gained breakdowns |
| Putty | Freemium; sub “less than a lesson” (price varies) | Phone only | Immediate — advice is LLM-driven from the start | GPT-4 club suggestions from position and history; AR green reading | Stats logging; advice is conversational |
| Monte (ours) | Beta — free waitlist, iOS first | Phone only | Instant calibration: one carry number + your typical miss, first round is already advised | Monte-Carlo: 4,096 outcomes per shot on your dispersion; Safe / Balanced / Attack with probabilities and expected score | Decision error vs execution error, separated — the product's core |
How we compared
Four questions, no stars.
“AI caddie” now covers everything from a $450 sensor ecosystem to a chatbot with a yardage book. Scores out of ten flatten that variety into mush, so we asked four questions instead. What does it cost, all-in? What hardware does it demand? How long until the advice is about you rather than an average golfer — the cold-start problem, which we think is the category's real dividing line? And what is the math actually doing: tracking what happened, or pricing what might?
We didn't rank them, because the honest answer is that the right pick depends on which golfer you are. What follows is what each app does best, in its makers' own terms, verified on their pages in August 2026 — and where its trade-off sits.
The field
Six contenders, fairly read.
Arccos Caddie $249.99 sensors + $199.99/yr after year one
The category's reference point and the deepest dataset in golf — sensors on all sixteen clubs auto-track every shot, and the A.I. rangefinder adjusts targets for wind, slope, temperature, humidity and altitude, personalized to your history. Used by tour players; unmatched if you want your entire game quantified. The trade-offs are the entry ticket (hardware plus subscription), screwing a sensor into every grip, and the fact that its intelligence compounds with data — it gets brilliant over time rather than on day one. arccosgolf.com
Noonan $199/yr
The engineer's pick. Noonan imports launch-monitor data — TrackMan, Garmin, Rapsodo, Toptracer, even a CSV — and builds a 95%-dispersion model per club, then recommends club and aim point with wind and elevation baked in, plus “Shot Odds” probabilities. If you already own measured numbers, it turns them into on-course decisions better than anything else here. Without a launch monitor you're typing distances in by hand, and at $199 it's priced like the premium tool it is. noonan.ai
Shot Pattern $99/yr
Phone-only and proudly stats-first: your actual dispersion drawn over the hole, and a strokes-gained predictor that compares club-and-target combinations before you commit. Tournament Mode hides live analysis while keeping GPS legal. It's the closest philosophical cousin to what we're building — the honest caveat is that the pattern is only as good as the history you've fed it, so the first rounds are data collection, and the interface rewards golfers who enjoy their statistics neat. shotpattern.app
Hello Birdie free / $47.90 / $99.99 per year
The planner. Give it your objective and it drafts a game plan for every hole — where to aim, what to hit, conservative to aggressive — then the caddie walks you through the plan during the round, and club distances refine themselves as you play. The free tier is a real product, and the price undercuts everyone. The trade-off: its advice follows the plan's logic rather than a live probability model, and it's less known than it deserves. hello-birdie.com
Tangent free / $79.99 / $119.99 per year
The most seamless tracking of the phone-only group — shot detection from phone or watch with no tagging ritual — feeding a caddie that picks the target maximizing expected strokes gained, with live wind and elevation. Post-round, the Smart Coach translates strokes-gained into plain English (“you leak 2.3 strokes from 100–150y”). Practice tools push you toward fixing the leak. It leans coach as much as caddie; if you want a probability quote for hunting this flag right now, that's not its native language. tangent.golf
Putty freemium
The indie wildcard: a GPT-4-driven caddie that talks strategy from your position and history, plus an AR green-reading mode — an ambitious pairing no one else here attempts, at pocket-money pricing. The trade-off is the flip side of the LLM approach: the advice is fluent and contextual, but there's no published dispersion model underneath it, and a caddie is ultimately a numbers job. Charming, improving, and worth watching. putty.golf
The verdict
Which one is your caddie?
- You want your whole game measured and money isn't the question — Arccos. The dataset is the moat.
- You own launch-monitor numbers and love them — Noonan turns them into decisions.
- You're a stats golfer with patience to feed it — Shot Pattern, phone-only strokes-gained done seriously.
- You want a plan and a budget — Hello Birdie's free and $47.90 tiers are the value picks of the category.
- You want tracking that disappears and coaching in plain English — Tangent.
- You're curious what an LLM caddie feels like — Putty, for less than a sleeve of Pro V1s.
And if you compete: whichever you choose, check what it may legally do during a tournament round — live recommendations from your ball's position are off-limits under Rule 4.3, and some features must sleep on Saturday. We wrote the plain-English version: are golf apps legal in tournaments?
Our bias, shown
Why we're building a seventh.
Reading the table, you can see the gap we're aiming at. Every strong product above either asks for hardware, asks for your launch-monitor homework, or asks for rounds of history before its advice is really about you — and none of them separates the two questions a real caddie answers after a round: was the decision wrong, or the execution?
Monte starts from two honest numbers — the carry you'd bet on and where your misses live (here's how to find both without a launch monitor) — and runs 4,096 simulated outcomes on every shot: Safe, Balanced or Attack, each with a probability and an expected score. After the round, it splits your strokes into decision errors and execution errors. In beta, iOS first, on a handful of hand-mapped courses. That's the honest row in the table: you can't download us yet — you can only tell us where you play, and join the tee sheet.