A plan for the hole, not just a number
Grassy reads the hole from a live satellite map with front, middle, and back yardages, hazards, and layup points, and proposes a shot-by-shot plan.
AI golf caddie · Course GPS Beta
An AI golf caddie that plans the hole around the way you actually hit it.
Grassy reads the hole from a live satellite map, builds a shot-by-shot plan around your real misses, and factors wind and elevation into the club it suggests. On supported courses it adds 3D terrain and LiDAR green reads. No sensors, no GPS subscription.
No GPS subscription · Starter AI usage included · Course GPS is in beta · Currently on iPhone · Course eligibility and green detail vary
What the caddie does
A caddie’s job, on your phone
A good caddie knows the hole, knows your game, and gives you one clear call. Grassy is built to do those three things during an eligible Course GPS Beta round.
Built around your real misses
The plan uses your own dispersion and tendencies from recorded rounds, so the target it suggests leaves room for the miss you actually hit.
Wind and elevation in the club
Plays-like distance uses available wind, elevation, temperature, and altitude, and the club suggestion comes from your configured bag.
3D greens where supported
On supported courses, LiDAR Green Books show slope heat and break-direction arrows, and interactive 3D terrain shows the hole before you choose a line.
Ask Grassy anything about your game
Scoring, driving, approach, and putting trends live in the same app, so you can ask where strokes are going and what the caddie is basing its plan on.
The round becomes part of your course story
After the round, rank the course, keep your notes and hole history, and see where friends have played.
Choose with clear eyes
Where Grassy fits, and where it does not.
Grassy is a strong fit if you want strategy and club guidance without buying sensors or a GPS subscription, in the same app that coaches your swing and ranks your courses.
- It does not track shots automatically. Sensor systems such as Arccos do that.
- It is not on Apple Watch, Wear OS, or Android today.
- Course GPS is in beta. Eligibility, terrain, and green detail vary by course.
- It does not promise offline maps. Plan on a data connection for the full experience.
Straight answers
Frequently asked questions
What is an AI golf caddie?
An AI golf caddie is an app that does part of a caddie’s job: reads the hole, suggests a target and a club, and accounts for conditions and your tendencies. Grassy does this during an eligible Course GPS Beta round, with a shot plan built around your real misses and wind and elevation factored into the club it suggests.
Does the Grassy AI caddie need sensors or a watch?
No. Grassy runs on your iPhone with no club sensors and no watch. It does not track shots automatically, so your stats come from the scores and shot outcomes you record.
Is the AI caddie free?
Grassy is free to download and use, and no GPS subscription is required: all current Course GPS Beta planning tools are included for everyone. Starter AI usage is included, and Grassy Pro, Grassy Max, or credit top-ups unlock more AI Caddie and swing analysis usage.
Does the AI caddie work at every golf course?
No universal coverage claim is made. A GPS round depends on course geometry and scorecard availability, and 3D terrain and LiDAR green detail appear on supported courses. Grassy’s directory of 30,000+ courses and simulators is for search and discovery, not a GPS coverage figure.
How does the caddie learn my misses?
From the rounds you record in Grassy: fairway and green results, putts, and the shot outcomes you enter. The more rounds you log, the more the plan reflects your game rather than a generic golfer.
Is Grassy available on Android, Apple Watch, or Wear OS?
Not currently. Grassy requires an iPhone with iOS 18.0 or later and does not claim Android, Apple Watch GPS, or Wear OS GPS support. Swing uploads work in a web browser on any device.
Can I use the AI caddie in a competition?
Check your competition’s rules. Advice that goes beyond distance and public information, including club suggestions and strategy, is not allowed under the Rules of Golf during a competitive round, so use the plan to prepare and the plain yardages while you play.
Ready for the next round
Bring a caddie that knows your misses.
Download Grassy on iPhone, open an eligible course, and start a Course GPS Beta round. All current Course GPS Beta planning tools are included for everyone.