An app built around three-putt avoidance.

Watch first — phone optional logging

Reaching for your phone is why you stop logging. So Lagr logs from the wrist, and your phone stays in your pocket. And it's built for the long ones: find the distance where two putts and three are a coin flip, then work your line and speed errors down.

Logging is free. Premium adds tailored feedback and self-guided training.

The Lagr Stats screen: Lagr Strength Index, your frontier 50 ft, placed in Long Range on a 47-to-55-foot scale, over the line "The distance where a 3-putt is a coin flip — on the practice green." Logging a putt on the Lagr watch app: a Simple Logger session at 40.0 ft, with Hole and Miss buttons filling the screen.

Every putt is sorted by distance

0–3 FT3–6 FT6–10 FT10–20 FT20 FT+
How it works

Log the putt. Keep your rhythm.

  • On the watch. Dial the distance with the Digital Crown, tap Hole or Miss, and keep practicing. Start and end sessions from the watch. How logging on Apple Watch works.
  • On the phone. The Super Simple Logger is just distance and result — set the start, tap Hole or Miss, and give a miss its leave.
  • Long putts are recognized automatically. Past 25 feet Lagr scores them as lag putts. No mode to switch on.
  • Two ways to follow the ball Premium — Course Green tracks one ball start to finish; Practice Green tracks where each ball finishes.
Download on the App Store Logging is free.
The Super Simple Logger on Lagr: a 4.0-foot start with one putt logged and holed, a plus and minus pad beneath it, and Hole, Miss and End Session buttons.
What it tells you

Four stats you know. One distance that's ours alone.

Every number comes from putts you actually logged — on the green, mid-round, or on the range.

63%

Make % by distance

Every bucket from tap-ins to lag range, so you know exactly where the wheels come off.

1.7

Putts to hole-out Premium

Follow one ball from first strike to the cup and see your real number, not a guess.

68%

Three-putt avoidance Premium

How often you get down in two from long range — and, distance by distance, how often you leave it inside a gimme.

↓0.4

Strokes gained Premium

Session over session, versus a real baseline — so you can see practice actually working.

Illustrative numbers.

The Lagr Strength Index is ours. Only putts from 25 feet and out count, each weighed against what's expected from that distance — so getting a 50-footer close is worth more than a 25-footer. Newer putts count more, so one bad green can't define you. How each putting stat is measured.

Where your misses finish Premium

Tap the green to place where the ball actually stopped, and Lagr reads what a distance alone can't tell you: Speed — whether you leave it short or run it past. Consistency — how tightly your leaves group. Line — a steady drift to one side, which is a read problem rather than a stroke problem. The leave map draws all of it against the odds. More on lag putting.

The Lagr leave map for putts from 25 to 35 feet: where 25 misses finished around the hole inside 1-in-4, coin-flip and 3-in-4 two-putt zones, with 23 of 25 leaving a two-putt worth 3 in 4 or better.
Challenges

Practice with a plan.

Guided challenges run start to finish on your wrist or your phone: a briefing before you begin, a card at each station telling you where to stand and how many balls to hit, and a summary at the end.

Start with the Lagr Strength Index Opener — the putts your Index needs before it shows a number. It's free, along with two more challenges.

The Lagr Strength Index Opener's first round: putt from 25 feet or more, with twelve empty balls for the long round and twelve for the short round, above a Log 12 balls button.
Free and Premium

Free to log. Premium for tailored feedback.

Free

  • Logging on your wrist and your phone
  • Your Lagr Strength Index and make % by distance
  • The Index Opener, and two more challenges
Accessibility

Built for VoiceOver, Voice Control and large text.

Lagr works with VoiceOver on iPhone and Apple Watch, and with Voice Control on iPhone. It holds its layout at the largest text sizes, respects Reduce Motion, and never uses color alone to carry meaning — charts read as a spoken summary rather than mark by mark. Each of those was tested on a device, not assumed from the code.

Get it

On the App Store now.

Point your phone at the code

A golf putting tracker for iPhone and Apple Watch. Requires iOS 17 or later.

Download on the App Store

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