OneAce Downloads & RevenueOneAce - Golf GPS Caddie · App Store

OneAce is a golf caddie for iPhone and Apple Watch. Wear your watch and play: OneAce logs every shot, shows live distances, suggests a club, keeps score with your group and helps you practice. No watch? Your iPhone records the round on its own.

NEW: GREEN READING
Scan the green with your phone to see its breaks and slope. OneAce draws your putt line and shows where to aim and how firmly to hit. Record your read and save or share the video. Requires a device with LiDAR.

NEW: SWING ANALYSIS
Film a swing, or pick one from your photo library. OneAce marks the key body positions through the swing so you can see which part to work on.

EVERY SHOT LOGGED ON YOUR WRIST
• Your Apple Watch detects swings and putts and records the stroke, distance and club. Nothing to tap between shots
• Practice swings are filtered out; if the watch isn't sure, it asks once
• Stepping onto the green switches to putting mode, and putts are counted for you
• Water or out of bounds prompts a one-tap penalty
• If the watch disconnects mid-round, your iPhone takes over automatically

DISTANCES AND CLUB ADVICE
• Live GPS distances to the front, middle and back of the green, updated as you walk
• Distances to bunkers and water on detailed hole maps; tap anywhere on the map to measure
• Wind direction, wind speed and temperature for where you are, plus the elevation change to the green
• Three options built from your own shot history: best, safe and aggressive, each with the odds of finding water, sand or the green
• The advice adapts to your bag and gets sharper after a few rounds

PLAY WITH YOUR GROUP
• Open a room and invite buddies by QR code, link or from golfers at the same course
• Up to 8 players, with a live leaderboard and hole-by-hole scores for everyone
• The scorecard syncs on its own, and each player can use a watch or a phone

YOUR NUMBERS AFTER THE ROUND
• A full scorecard with strokes, putts and penalties for every hole
• Distance and club for every shot, fairways hit and greens in regulation
• Your club distances build up round by round, so you learn how far you really hit each club
• Fix, add or delete any shot afterwards; the scorecard is always yours to edit

MADE FOR THE COURSE
• The course and hole are detected from your location, and walking to the next tee switches holes
• Works with patchy signal: shots stay on your phone and upload when you're back online
• Available in 18 languages

HEALTH AND PRIVACY
• Your round is saved to the Health app as a golf workout, with heart rate if you choose. Your heart rate is visible only to you
• Your round data belongs to you. Read our privacy policy at oneace.golf/privacy

We keep improving OneAce. Share ideas any time from Feedback in the app. We read every message and reply as soon as we can.

Apple Watch Series 6 or later recommended for swing detection. Continued use of GPS in the background can decrease battery life.