{"appstoreID":6815606969,"title":"Plumb Bob: Golf Green Reader","subtitle":"Putting line, break & slope","developerName":"KATHERINE YVONNE PATTON","description":"Plumb Bob turns your iPhone into a green reader.\n\nGolfers 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.\n\nBALL. HOLE. PLUMB.\n• Mark your ball, walk your line to the hole and aim at the cup\n• Stand behind the ball and hold the phone up: the plumb line shows which way it breaks\n• See the putting line on the green, where to aim, how much it breaks and how long it plays\n\nGREEN SPEED FROM ONE ROLL\n• Roll any ball 8–15 ft and Plumb Bob measures the Stimp\n• Roll one back the other way to cancel out slope\n• Or pick Slow, Medium, Fast or Tour\n\nYOUR PUTTING SCORE\n• Play a round and every putt you read is scored against a tour putter (strokes gained)\n• Make percentages by distance and by slope, and what to work on\n• A recap card for every round, ready to share\n\nBUILT FOR iPHONE\n• Haptics you feel as the ball drops\n• Your round on the Lock Screen and in the Dynamic Island\n• Siri, the Action Button and Control Center: straight into a read\n• Home and Lock Screen widgets\n• Full VoiceOver and Dynamic Type support\n\nPRIVATE BY DESIGN\nNo account. Everything is worked out on your phone, it works offline, and it collects no data.\n\nTry 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.\n\nTerms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/","bundleID":"app.plumpbob","appiconURL":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/5f/39/29/5f39298f-3830-bea6-246a-c4b799b1ea27/Placeholder.mill/1024x1024w.webp","formattedPrice":"Free","appUpdated":"2026-10-09T18:36:36.000Z","appReleased":"2026-09-29T07:00:00.000Z","version":"1.0.1","platforms":["watch","iphone","ipad"],"minOS":{"iphone":"Requires iOS 18.0 or later.","ipad":"Requires iPadOS 18.0 or later.","watch":"Requires watchOS 10.0 or later."},"topIAPs":[{"name":"Plumb Bob Pro (Monthly)","price":"$9.99"},{"name":"Plumb Bob Pro (Annual)","price":"$59.99"}],"languages":["EN","FR","DE","JA","KO","ZH","ES","SV"],"size":"17.3 MB","category":"Sports","developerWebsite":"https://plumbbob.app/","screenshots":[{"platform":"ipad","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ab/73/69/ab73693e-d0c0-1e45-570b-060f0dbf1965/01-green-reading.png/2064x2752w.webp"},{"platform":"ipad","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/d1/a2/96/d1a296f5-95ae-779b-a8a6-e1a46cc375e7/02-break-and-roll.png/2064x2752w.webp"},{"platform":"ipad","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/0b/6d/d4/0b6dd49f-43ad-993c-7a9c-4ed633452862/03-green-speed.png/2064x2752w.webp"},{"platform":"ipad","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/45/03/02/4503026b-21d2-18b4-1e7d-46105fa1385b/04-plumb-bob.png/2064x2752w.webp"},{"platform":"ipad","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ac/04/da/ac04da3b-8548-78c5-5c3b-c6903f0b00ab/05-putting-insights.png/2064x2752w.webp"},{"platform":"ipad","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ac/82/76/ac8276a6-d2f7-113d-45fa-337a2645743e/06-round-history.png/2064x2752w.webp"},{"platform":"ipad","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/b3/7c/0b/b37c0b0f-0960-ba58-4043-4c98232dc748/07-round-recap.png/2064x2752w.webp"},{"platform":"ipad","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/f0/78/a6/f078a6e6-ab07-a928-adaa-6cca2a69eb51/08-scorecard.png/2064x2752w.webp"},{"platform":"iphone","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/d2/2e/31/d22e3164-4443-73f6-1825-083c6650fa96/01-green-reading.png/1242x2688w.webp"},{"platform":"iphone","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/5a/9d/9a/5a9d9a51-689c-7f17-9877-53277fa0560f/02-break-and-roll.png/1242x2688w.webp"},{"platform":"iphone","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/7a/f5/a3/7af5a343-f789-2efa-9c1f-8873fead984a/03-green-speed.png/1242x2688w.webp"},{"platform":"iphone","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/9f/91/96/9f9196dc-962a-36f4-c770-ca385c8b2c68/04-plumb-bob.png/1242x2688w.webp"},{"platform":"iphone","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/26/dc/53/26dc5350-36b2-bdaa-1f3d-21ba4f8c7958/05-round-recap.png/1242x2688w.webp"},{"platform":"iphone","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/aa/05/e6/aa05e608-cab8-1128-53d2-c0d20b4da53e/06-putting-stats.png/1242x2688w.webp"},{"platform":"iphone","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/61/2b/87/612b87ec-d13d-458b-8dbb-6b5bcb9d71a0/07-iphone-and-watch.png/1242x2688w.webp"},{"platform":"watch","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/81/cc/33/81cc33bc-9595-ad3b-ccc6-b081b7fe090d/01-green-reading.png/422x514w.webp"},{"platform":"watch","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/5a/91/a3/5a91a3c5-a4b4-98dc-7841-62d54ad49655/02-round.png/422x514w.webp"},{"platform":"watch","url":"https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/e3/2c/e7/e32ce7cd-311b-615f-6560-03f227bdc29a/03-stats.png/422x514w.webp"}]}