# 4sum — Golf side games, settled up

> Golf side game tracker and bet settlement for groups. (iPhone/iPad app by Two Beers Studios LLC.)

- Source: https://appshunter.io/ios/app/4sum/id6790892885 (this page in markdown: same URL + `.md`)
- Developer: [Two Beers Studios LLC](https://appshunter.io/developer/6787471428)
- Category: Sports
- Price: Free with in-app purchases
- Rating: 5.00/5 from 5 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.4 · 52 MB
- Languages: American English
- Released: 2026-09-20
- Data updated: 2026-10-31
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/4sum/id6790892885/reviews.md

## What is 4sum?

4sum runs your group's golf bets. 21 side games, scored as you play, and at the end it tells you exactly who pays who.

21 GAMES, NOT FIVE
Wolf, Nassau with presses, Skins with carryovers, Vegas, Banker, Bingo Bango Bongo, Snake, Sixes, Rabbit, Dots and junk, Left-Right, Scotch, High-Low, Niner, Match Play, Best Ball, Stableford, Stroke, Scramble, Format Rotation and Longest Drive. Run as many at once as you like on the same card.

IT TEACHES THEM TOO
Every game has a how-to and a worked example, because the hardest moment in a side game is the tee box where somebody says "wait, how does this one work?"

IT SETTLES UP
At the end, every game is netted across every player and reduced to the fewest possible payments. Not a table of who owes what to whom eleven times over, just "Mike pays Pat $45." 4sum never touches money itself.

IT TELLS YOU WHAT THE HOLE IS WORTH
A strategy helper works out what is actually on the line before you hit, from the real state of every game you have running. It cannot disagree with the money, because it reads the same numbers.

EVERY COURSE IN THE US
Search by name or town and add any of 30,000+ US courses with one tap, scorecard, tees, ratings and slope included. Not listed? Request it.

GPS DISTANCES
Front, middle and back of the green, live as you walk. Tap Find on map and 4sum pulls the greens from OpenStreetMap where they have been mapped, or stand on a green once and mark it yourself. Tap anywhere on the hole for the carry and what is left from there.

LONGEST DRIVE, MEASURED
Mark the tee, hit, mark the ball. Add the game whenever you feel like it and use it on whichever holes you want.

PLAY TOGETHER, FREE
Add a friend to your round and they get an invite to score it on their own phone. Everybody enters their own score on one shared card, and when the round ends it lands in the history of everyone who played. Leaving after nine? Leave early and 4sum settles your games through the holes you played while the rest of the group plays on.

FRIENDS AND MESSAGES
Add friends by @handle, friend code or straight from a round. Message them, or chat with your group during a round. You choose which notifications you get, and you can report or block anyone.

ON YOUR LOCK SCREEN AND YOUR WRIST
The live score sits on your lock screen and in the Dynamic Island while you play. On Apple Watch, check yardage, enter scores and see the games, phone in pocket.

LIFETIME RECORDS
Every finished round adds up: lifetime money, rounds won, and a head-to-head record against everyone you play with.

4SUM PRO
Everything above is free. 4sum Pro adds the parts that need our servers or your camera:
- Host outings: run your own event for up to 24 players, with one leaderboard for the whole field.
- See the other cart: everyone in a joined round shows up live on the hole map.
- Your stats: scoring, money, putting and every course, with the people you play with.
- Every over/under line: eagles, birdies, pars, bogeys, doubles and worse, overall and for each course you play. Free shows the pars line.
- Record your shots: film the round, mark each shot from your Apple Watch, and add labels and tracers.
- Custom games: mix parts of the 21 into your group's own game.
- Cloud backup: your rounds, players and courses safe in your account and on every phone you sign in to.

Pro is $2.99 a month or $25 a year in the US, and renews automatically until you cancel in your App Store settings at least 24 hours before renewal. Pro needs a free 4sum account. Terms: https://twobeersstudios.com/terms/4sum/ Privacy: https://twobeersstudios.com/privacy/4sum/

NO ADS, WORKS WITH NO SIGNAL
No ads, and no account needed to keep score (friends, messages and playing together need a free account). Your rounds live on your phone and work with no signal, which is what you want on the back nine anyway.

4sum is a scorekeeper for friendly wagers between people who already play together. It does not process payments, take a cut, or hold anybody's money.

## Key features

- Twenty golf side games
- Automated bet settlement
- In-game strategy helper
- GPS distances to green
- Lifetime player records
- Course database and custom courses

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| 4sum Pro (Yearly) | $25.00 | per year |
| 4sum Pro (Monthly) | $2.99 | per month |


## Is 4sum safe?

Not enough ratings yet to assess 4sum.

## Is 4sum legit?

4sum has limited verification signals. The AppsHunter Legitimacy Score for 4sum is 58 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/4sum/id6790892885/reviews.md

### 5/5 — Great app

*2026-10-10*

Great app, great using on the golf course!

### 5/5 — Amazing App

*2026-10-08*

I’ve been looking for an app to help track side games while playing a round. This app is the answer. You are easily app to settle up while not having to keep track of the score. It allows you to focus on not shanking your next shot.

### 5/5 — Ideal for a good time

*2026-10-02*

My buddies always set off to play a game and by home 12 or 13 everyone tends to lose track. This app does a great job of handling that

### 5/5 — Superb Game Tracking

*2026-09-30*

I’ve waited a long time for a quality, free/cheap golf side game tracker. Normally I spend 20% of the time on the course acting as book keeper rather than watching shots and participating in the games. That problem is solved with 4sum! Looking forward to future updates!

## Frequently asked questions about 4sum

### Does 4sum have ads?

No, 4sum is completely ad-free. The app is designed to provide an uninterrupted experience for users managing their golf bets and scores.

### How does 4sum settle bets?

4sum calculates all side games and nets them across all players at the end of the round. It then presents the fewest possible payments, indicating exactly who pays whom, without handling any money directly.

### Can I use 4sum offline?

Yes, 4sum works with no signal. Your rounds live on your phone, making it ideal for use on the golf course where connectivity may be an issue.

### What golf courses are supported by 4sum?

4sum includes over 30,000 US courses, searchable by name or town. You can also add custom courses if yours is not in the database.

### How does 4sum explain its games?

Each of the twenty side games includes a 'how-to' guide and a worked example. This helps players understand the rules, especially at the tee box when questions arise.

### What kind of lifetime records does 4sum track?

Every completed round contributes to lifetime records, including total money won, rounds won, and head-to-head statistics against other players you've competed with.

### Is there a subscription for 4sum?

No, 4sum is completely free with no subscription required. There is also no account or sign-up needed to use the app.

### What devices does 4sum support?

4sum is available on iPhone and Apple Watch, offering flexibility for tracking scores and bets on the go.

## Version history (last 5 releases)

### 1.5.0 — 2026-10-28

A NEW LOOK
4sum is redesigned from top to bottom for iPhone: cleaner cards, bigger numbers you can read in the sun, a floating tab bar, and a new ? button that walks you through starting, scoring and settling a round.

APPLE WATCH, REDESIGNED
The Watch app has the new look and opens on the rangefinder, then Score and Games, with hole arrows on every page. The live score on your lock screen has the new look too.

BUILD YOUR OWN GAME
Mix parts of the 21 games into your group's own game: search for a rule, add it, and 4sum does the money. Saving a game is Pro.

MESSAGES, LIVE
A Messages tab with typing dots, read receipts and reactions. Hold a message to react, copy or report it.

FINISH FROM ANY HOLE
A blank hole gets a dot and a reminder before you move on, games skip it instead of stopping there, and the Finish screen lists what's missing. End early and only finished bets pay, with a line that says what was voided.

SETTLE UP, PROPERLY
Tick off each payment as it's made and it stays ticked in History. Change a game mid-round and choose whether it applies from this hole on or to the whole round.

GROUP ROUNDS THAT STAY IN SYNC
The host's Finish closes the card for everyone. Tees, strokes, presses and Longest Drive sync across phones, and a late joiner is offered into the games from the hole they joined.

COURSES
A round keeps the tee it was played on, so a corrected scorecard never changes an old round. Course search forgives spelling and sorts by nearest. Can't find a course? Request it and we'll add it to the directory.

BUG FIXES
- Scores entered before you share a round now reach everyone who joins.
- Friendly rounds count points, not dollars, in History, totals and the share card.
- A round on the back nine shows holes 10-18 and the right Out and In.
- Handicaps on 9-hole courses are worked out correctly.
- Scramble no longer mixes tees, and a leftover cent is split the same way in every game.
- Clearing a hole in an event clears it on every phone.
- The unread badge and Messages agree.
- With location off, the rangefinder says so instead of loading forever.
- Deleting a round also deletes its clips.
- Pro now belongs to your free account, so it follows you to every phone you sign in to.
- Blocking covers search, maps and round chats, and handles and names are checked for offensive words.
- And lots of smaller fixes.

### 1.4.0 — 2026-10-21

Friends and messages. Add friends by @handle, friend code or after a round. Message them one to one, or chat with your group during a round, and get a notification for requests, invites and messages. Report and block are built in.

Play together, now free. Add a friend to your round and they get an invite to score it on their own phone. When the round ends it lands in everyone's history.

Leave early. Heading out after nine? 4sum settles your games through the holes you played while the rest of the group plays on.

Live score on your lock screen and in the Dynamic Island, and hole arrows and GPS yardage on Apple Watch.

Also new: change a player's tee or strokes mid-round, your stats with 4sum Pro, settings search, and lots of fixes.

### 1.3.0 — 2026-10-10

4sum Pro is here. Host group rounds, record your shots, see every over/under line by course, save your own custom games, and back up your rounds to your account.

Everything you use today stays free, and joining a friend's group round only needs a free account.

Playing in a course outing? Register your team from the app, enter one score per hole in a scramble, and open the event straight from your captain's link.

New opening animation, and the app now picks up the latest fixes on its very first launch.

### 1.1.1 — 2026-09-26

Search by town. Type a city and 4sum lists every course around it, nearest first, not just the ones with the town in their name.

Near me finds the course you are actually standing next to. It used to miss the closest ones in busy areas.

The Apple Watch now shows your round: the hole, the yardages and the scores.

A round timer shows how long the group has been out, on every hole.

Courses that are on the map but have never been named can be set up in a tap.

Smaller fixes throughout.

### 1.1.0 — 2026-09-20

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-31.*
