Plumb Bob: Golf Green Reader
KATHERINE YVONNE PATTON Sports iPhoneiPadiPod touchApple Watch
Plumb Bob: Golf Green Reader is a free Sports app for iPhone and iPad by KATHERINE YVONNE PATTON. Rated 5.0/5 from 2 ratings. Requires iOS 18.0.
- Rating
- 5.0
- 2 ratings
- Price
- Free
- on the App Store
- Size
- 18 MB
- Age 4+
- Updated
- Oct 13
- 2026 · v1.0.2
Screenshots
About Plumb Bob: Golf Green Reader
Plumb Bob turns your iPhone into a green reader. Golfers have plumb-bobbed putts with a putter shaft for a hundred years. Plumb Bob gives you a truly vertical line from the phone's sensors, maps the slope of the whole putt as you walk from your ball to the cup, and rolls test putts over it at the green's speed. The line, the aim spot and the break appear on the grass in about twenty seconds. BALL. HOLE. PLUMB. • Mark your ball, walk your line to the hole and aim at the cup • Stand behind the ball and hold the phone up: the plumb line shows which way it breaks • See the putting line on the green, where to aim, how much it breaks and how long it plays GREEN SPEED FROM ONE ROLL • Roll any ball 8–15 ft and Plumb Bob measures the Stimp • Roll one back the other way to cancel out slope • Or pick Slow, Medium, Fast or Tour YOUR PUTTING SCORE • Play a round and every putt you read is scored against a tour putter (strokes gained) • Make percentages by distance and by slope, and what to work on • A recap card for every round, ready to share BUILT FOR iPHONE • Haptics you feel as the ball drops • Your round on the Lock Screen and in the Dynamic Island • Siri, the Action Button and Control Center: straight into a read • Home and Lock Screen widgets • Full VoiceOver and Dynamic Type support PRIVATE BY DESIGN No account. Everything is worked out on your phone, it works offline, and it collects no data. Try the demo green without going to the course. Measuring green speed is always free. Plumb Bob Pro unlocks unlimited reads, rounds with strokes gained, and stats, with a free week to start. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
What’s new
Version 1.0.2 · Updated October 13, 2026
Try Plumb Bob Pro free for a week straight after the intro, or carry on with your three free reads. Plus small improvements.
App privacy
The developer, KATHERINE YVONNE PATTON, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Purchases: Purchase History
- Usage Data: Product Interaction
Used for: Analytics
Alternatives to Plumb Bob: Golf Green Reader
Looking for apps like Plumb Bob: Golf Green Reader? Here are 6 similar apps on the App Store. The highest rated is AimPoint Golf Instructor (5.0/5), and all 6 are free to download.
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AimPoint Golf Instructor
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Padel Score Tracker: Paco
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TopSwing Analyzer
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TopSwing Tracer
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BirdiePT
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PuttPerfect
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Plumb Bob: Golf Green Reader | 5.0 / 5 (2 ratings) | Free | October 13, 2026 | |
| AimPoint Golf Instructor | 5.0 / 5 (1) | Free | Sep 7, 2026 | Compare |
| Padel Score Tracker: Paco | 5.0 / 5 (1) | Free | Oct 21, 2026 | Compare |
| TopSwing Analyzer | – | Free | Oct 22, 2026 | Compare |
| TopSwing Tracer | – | Free | Aug 3, 2026 | Compare |
| BirdiePT | – | Free | Dec 19, 2023 | Compare |
| PuttPerfect | – | Free | Apr 28, 2025 | Compare |