Most golf stats are wrong because recording them slows play.
Almost every golf stat tracking app dies somewhere around the sixth hole. Not because the app is bad, but because the player is standing on a tee with three people waiting, a glove on one hand and a phone that wants four taps before the next shot. The numbers you end up with are never the ones you designed. They are the ones people were still willing to enter after two hours in the sun, which is exactly why a general scoreboard app collects a clean score and almost nothing else.
This page covers what is worth recording on a hole, why the simple set often beats strokes gained for an amateur, what the Rules let a device tell you during a round, where course yardages come from, and what four hours of golf does to a battery.
See what your stat set costsThe short version
Record less than you want to, or you will record nothing.
The binding constraint on a golf stat app is not storage, and it is not maths. It is the number of taps a player will do between hitting a ball and hitting it again, with a group behind them. Our working limit is two, and the second one is already optional.
Design inside that budget and you get four months of honest data. Design outside it and you get three good rounds, a gap, and a set of averages built only on the holes where nothing went wrong. That is the one sample that tells you nothing at all.
Two taps is the whole budget
Start from the shot rather than the schema. A player has hit the ball, they are walking, and somewhere in the next ninety seconds they have to hit it again. Anything the app asks for has to fit inside that walk: one handed, in bright sunlight, often with a glove on. That rules out dropdowns with fourteen options, free text of any kind, and anything needing both thumbs.
What survives the test is short. The score for the hole. Whether the tee shot finished in play. The number of putts. Each of those is one tap if the control is big and pre-filled with the likely answer, and the pre-fill matters more than people expect. A stepper that opens on par costs one tap for a par and two for a bogey, and no thinking either way.
Everything else is a want. Club used, lie, distance of the approach, whether the putt ran uphill. Each is defensible on its own and fatal in aggregate. The honest way to settle it is to count: multiply what you are asking for by eighteen, then ask whether you personally would do that on a wet Tuesday in February when you are four over.
Try it
What your stat set costs the round
Pick what you want on every hole, then set what one tap honestly costs you, including getting the phone out of the bag. This is your own arithmetic, not a study.
54 taps, about 5 minutes
The set most amateurs can actually sustain for a season. That time comes out of a round three other people are also playing. If the number reads fine here and feels awful on the seventh tee, the set is too big, and the stats a player abandons halfway round are worse than the ones they never started.
Strokes gained is better maths and usually the wrong tool
Strokes gained compares each shot against a baseline of what a reference population scores from that position, and it is a genuinely better idea than counting fairways. It can tell you that a drive into light rough sixty yards further down the hole was a good shot, where fairways and greens will record it as a miss forever. If you have the data, it is the right way to think about a round.
The catch is the data. Strokes gained needs a start position and an end position for every shot, in yardage terms, which makes it a per shot entry problem rather than a per hole one. That is the ten tap round in the widget above. The pattern after that is easy to predict and hard to avoid: a few brilliantly documented rounds, then a gap, then nothing. A strokes gained figure built on your four most patient rounds flatters you in a very particular way.
The simpler set is more honest precisely because it is cheap enough to survive a bad day. Fairways hit, greens in regulation, putts, up and downs, penalty strokes. Those five will show an amateur where the shots are actually going, and they will show it every single round rather than only the ones you felt like documenting. A cruder metric you measure always beats a better metric you measure sometimes.
What a device is allowed to tell you during a round
This is the part that changes the product rather than the copy. Rule 4.3a(1) of the Rules of Golf covers using equipment to get information during a round. Getting information on distance or direction, for example from a distance measuring device or a compass, is allowed. So an app that shows a yardage to the front, middle and back of the green is on solid ground.
Three things in the same rule are not allowed, and an app can walk into all three by accident. Measuring elevation change is out, so a plays like number that adds yards for an uphill shot is a different animal from a yardage. Interpreting distance or directional information is out, and the rule names the case directly: using a device to get a recommended line of play or club selection based on where the player's ball is. Using a device as an alignment aid to help line up the ball is out too.
The design consequence is a clean line drawn down the middle of your feature list. Report, do not advise, at least while the round is in progress. Your app can hold every club distance a player has ever recorded and show them all of it in the bar afterwards. The moment it looks at the ball position and says seven iron, it has become something the player cannot use in a round that counts. Competitions also set their own conditions, so check those instead of assuming.
Where the yardages come from, and what the round costs the battery
Course maps are a product somebody sells
A yardage to the middle of the green needs two things: where the phone is, and where the green is. The first is free and comes with the handset. The second is a surveyed point on a particular hole of a particular course, and there are tens of thousands of courses.
We checked two of the companies that supply this. iGolf describes licensing hole by hole scorecard and GPS data to mobile apps and GPS devices, delivered through its API or embedded as a file. GolfLogix describes licensing front, center and back green locations along with fairway and hazard mapping across more than forty thousand courses, available either as a subscription or on a per request model. Neither publishes prices or licence terms on the page, and both ask you to get in touch.
So take this as the honest answer. Hole by hole course mapping, with green positions and hazard shapes, is sold as a commercial dataset rather than lying around in the open. We did not see either company's actual contract, so confirm coverage, pricing and whether you are permitted to store or redistribute anything with the provider directly before you design around it. The cheap alternative works better than it sounds: let the player drop their own pin on the middle of each green the first time they play a course. One round of effort, and afterwards the app knows the only nine courses that member ever plays.
Four hours is a long time to hold a fix
A round is four hours or more, outdoors, often warm, on a phone that is also the scorecard, the camera and the group chat. Continuous high accuracy location is one of the most expensive things a phone can do, and golf is the rare category where session length turns that into a real design constraint rather than a footnote in the docs.
The fixes are practical and mostly about restraint. Do not hold a continuous fix. Take a reading when the player asks for a distance and another when they record a shot, and sleep in between. Cache the course data for the whole round before the first tee, because the far end of the property is frequently where the signal is worst. Then test on the oldest phone in the group rather than the newest, since a three year old battery is the hardware most of your players are actually carrying.
What each way of keeping stats actually gives you
| Option | Taps per hole | Survives a slow fourball | Strokes gained | Yardage to the green | Data you still have in six months |
|---|---|---|---|---|---|
| Paper scorecard | 1 | Yes | No | No | only if you keep the cards |
| Notes app or spreadsheet | 2 to 3 | Yes | No | No | Yes |
| Free scoring app | 1 to 3 | Yes | No | sometimes | until you switch app |
| Shot tracking with club tags | little or none | Yes | Yes | Yes | Yes |
| A stat app you build | you decide | Yes | if you enter shots | licensed data or your own pins | Yes |
Building one around the stats you will actually keep
Off the shelf golf apps are built for the average golfer, which in practice means they ask for the union of everything anyone might ever want. That is why they feel heavy on the course. A club, a society, or eight friends who play the same three courses has the opposite problem. It wants a very small set of fields, its own competition format, and the arithmetic the group actually uses rather than a general purpose version of it.
Newly is an AI app builder. You describe the app, including the two things you are honestly willing to tap on every hole, and it builds and ships a real mobile app you own. Plans start at $25 a month, there is no free plan, and iOS builds ship through App Store Connect. It does not come with course map data and it does not process card payments, so a society collecting entry fees keeps doing that however it does now. The same shape works for a sports team app or a tournament bracket app when the group plays a format nobody sells.
Before committing to anything, get clear on what a phone can and cannot tell you about position, because most of the disappointment in this category starts with an assumption about distance to the pin that was never true.
Questions people ask about golf stat tracking apps
Record the score, whether the tee shot finished in play, and the number of putts, and stop there until that set has survived a full season. Those three fit inside the walk between shots, which is the real constraint. Everything else, club used, lie, approach distance, is a want that multiplies by eighteen and quietly ends with the player not opening the app.
Decide what you will tap on every hole, then build around it
Write down the two or three fields you would still enter on the fifteenth in the rain, and let everything else be something the app works out later.
Start building