Leave the phone in the bag
The watch runs the clock, score, cards and substitutions on its own, and the clock keeps running with your wrist down.
Soccer referee app for Apple Watch
Run the whole match from your wrist.
Clock, score, cards and substitutions on your Apple Watch, with your phone left in the bag. Reports, heatmaps and every match you've refereed on your iPhone.
Coming soon to theApp StoreSee how it works
No phone on the fieldThe watch runs the match on its own.
USSF · IFAB · FA codesCautions and send-offs with the codes you report with.
Undo, never eraseEvery correction stays in the match log.
How it works
Before, during and after the whistle.
- Before
Set up on your iPhone
Add a match, or connect Assignr and your assignments arrive as matches. Games kicking off in the next 48 hours are sent to your watch.
- During
Referee from your wrist
Kick off on the watch. Keep time, record goals, cards and substitutions, and fix a mistake with Undo. Your phone stays in the bag.
- After
Review and report
The match reaches your iPhone on its own: a minute-by-minute report to share as a PDF, your heatmap, distance and heart rate.
Match reports
Your match report, written while you referee.
Every goal, caution, send-off and substitution is logged on the watch with the minute and the misconduct code. After the whistle it's a report on your iPhone.
- Share as a PDF, or export the raw log as CSV
- Cards for players and team officials, second cautions included
- Stoppage-time minutes written the way you'd write them: 45+2'
| 12' | Goal | Home #9 | |
| 27' | Caution | Away #4 | DT |
| 45+2' | Half time | 1 – 0 | |
| 52' | Goal | Away #11 | |
| 61' | Substitution | Home #14 → #7 | |
| 78' | Send-off | Away #6 | SFP |
| 84' | Goal | Home #10 | |
| 90+3' | Full time | 2 – 1 |
Features
Built for the pace of a real match.
Cards with the right codes
Cautions and send-offs for players and team officials, with US Soccer, IFAB or England FA codes.
Made for match tempo
Large tap targets, a short guard against accidental taps, and a tap on your wrist when an incident is saved.
Undo, never erase
Fix a mistake in one tap. The correction stays in the match log and the score is worked out again.
Syncs on its own
Every incident is saved on the watch the moment you record it and reaches your iPhone when the two are together. Resending never duplicates.
Know how you ran
Each match is saved to Apple Health as a workout with heart rate, and your iPhone draws the heatmap and distance.
No account. No servers holding your matches.
What you record stays on your iPhone and Apple Watch. No ads, no tracking. Read the Privacy Policy.
Do I need my phone during a match?
No. The watch runs the whole match on its own and sends everything to your phone the next time they're together.
What if I record the wrong incident?
Tap Undo on the watch. It cancels the latest incident without erasing the history, and the score and cards are worked out again.
Does the clock stop when the screen goes dark?
No. The match keeps running with the screen off or your wrist down.
Which misconduct codes does Halfline use?
You choose the code set: US Soccer (USSF) codes, the wording of the IFAB Laws of the Game, or the England FA's caution and send-off codes. Cards can be shown to players and to team officials.
From the blog
Notes for referees.
USSF Misconduct Codes: Every Caution and Send-Off Explained
The six US Soccer caution codes and seven send-off codes referees use in match reports, what each one covers and how to write them up.
How to Keep Stoppage Time as a Soccer Referee
What Law 7 counts as lost time, three ways to track it during a match, and a simple routine for deciding how much to add.
Refereeing With an Apple Watch: A Pre-Match Checklist
Battery, settings, fit and backups: what to check on your Apple Watch before you walk out to referee a soccer match.
Get Halfline
Coming soon to the App Store.
For iPhone (iOS 16.4 or later) and Apple Watch (watchOS 10 or later). Questions before launch? Get in touch.
Coming soon to theApp Store