Soccer Referee Timer by WTSB vs WhistleOS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Soccer Referee Timer by WTSB
This app is an all-in-one tool for soccer referees, offering precise timekeeping, fast event logging, GPS tracking, and AI-powered performance analysis. It provides detailed match reports and fitness data, streamlining the refereeing process without the need for pen and paper.
- Event logging (goals, cards, fouls)
- IFAB-compliant disciplinary actions
- Automatic timers for halves and shootouts
- GPS-based movement analysis
- AI performance insights
- Full match reports
- iPhone companion app
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Soccer Referee Timer by WTSB turns Apple Watch into a powerful tool for soccer referees. You do not need your iPhone during the match: manage match time, stoppage time, goals, cards, temporary dismissals, substitutions and penalty shootouts directly from your wrist. After the final whistle, the match is saved and transferred automatically to your iPhone. TIME AND EVENTS UNDER CONTROL The flexible match timer supports one to four periods, countdown or open-ended timing, and customizable match and break lengths. When play is delayed by an injury, goal celebration or another interruption, the app measures the lost time and calculates your recommended stoppage time. Clear haptic alerts notify you when regulation time ends, calculated stoppage time is reached, the break is over or a temporary dismissal has expired – so your attention can remain on the match. Record goals with scorer, penalty or own-goal details, yellow, second-yellow and red cards with reasons, disciplinary action against team officials, and multiple simultaneous temporary dismissals. Custom card reasons can be prepared in advance. Manage lineups, captains and goalkeepers, multiple substitutions, return substitutions and late roster additions, as well as extra time and penalty shootouts. Short voice notes can be attached to cards and temporary dismissals directly from the watch. Match suspensions and abandoned matches are documented too. THE COMPLETE MATCH REPORT The live match report presents every event chronologically and can be reviewed on Apple Watch. On iPhone, it becomes a clear, color-coded report containing halftime and final scores, stoppage time, goals, cards, substitutions, lineups, voice notes and shootout results. Events can be added, corrected or removed after the match, with the score and statistics updating automatically. FITNESS, MOVEMENT AND AI ANALYSIS With fitness and location tracking enabled, a workout starts automatically at kickoff. Apple Watch records heart rate, distance, speed, running power and active calories and saves the workout to Apple Health. The app can also capture the venue, weather and GPS route. On iPhone, explore your movement on an interactive map with route playback, heatmap, detected movement corridor, event locations and sprint analysis. AI-assisted performance analysis combines your fitness data into a Performance Score and visualizes activity, explosiveness and fatigue throughout the match. Compare each performance with previous matches, identify peak-load phases and track your development. The dashboard summarizes your entire refereeing career, including matches, time on the field, goals, cards, stoppage time, distance, venues, speed and performance. SHARE AND CONNECT Share match reports, workout data, heatmaps and sprints as ready-made story graphics. Relive your season with Season Replay and create a personalized referee trading card. Matches can also be uploaded to Strava. Lineup links import rosters and match formats from supported competition software, while the AI Help Chat answers questions about the app and the Laws of the Game with source references. Complications and the Apple Watch Ultra Action Button provide fast access, while an iPhone widget displays key career statistics on your Home Screen. START FOR FREE The free download includes the complete match timer with stoppage-time calculation, haptic alerts, scorekeeping and synchronization. Advanced match documentation, tracking and analysis are available with Pro. Pro can be tested free of charge and unlocked through a subscription or a one-time lifetime purchase. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
WhistleOS
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WhistleOS is the app for football referees – from grassroots to elite. You run the match on Apple Watch and prepare and review it on iPhone. ON YOUR WATCH • Match clock with halves, stoppage-time suggestion and pause clock • Goals (incl. penalties and own goals), yellow, second yellow and red with reason • Cards for coaches and team officials, substitutions with bench and starting XI • Heart rate, steps and running route during the match • Three colour themes: light, pitch and contrast ON YOUR IPHONE • Import line-ups from a photo, screenshot or PDF (AI) and send them to the watch • Import your assignments from e-mails or reports • Match report with timeline, summary and PDF export • Special reports for sending-offs • Expense receipts with signature – the fee is taken from your association's fee list • Season statistics with distance and heatmap FOR ASSESSORS • Observation forms: German DFB, England (FA), Netherlands (KNVB), a generic international template – or import your association's form from a photo • Notes with minute, thumbs up/down and pitch position • AI suggestion for the ratings based on your notes – every rating stays editable WHISTLEOS PRO All features are free for 14 days. After that: WhistleOS Pro monthly or yearly. The subscription renews automatically and can be cancelled at any time in your Apple Account settings. PRIVACY Matches, heart rate and route stay on your device. Health data is not included in iCloud backups. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://sites.google.com/view/datenschutzwos
Screenshots
Verdict
The clearest difference is update cadence: Soccer Referee Timer by WTSB at every 4 days against WhistleOS's fortnightly. WhistleOS's advantage is iOS requirement (17.0 vs 26.1). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Soccer Referee Timer by WTSB sells 3 in-app purchases, starting at $1.99 per month and WhistleOS sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
Soccer Referee Timer by WTSB ships an update every 4 days, WhistleOS fortnightly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | Soccer Referee Timer by WTSB | WhistleOS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (15 ratings) — better | — |
| Positive reviews | 89.7% of reviews | — |
| Number of ratings | 15 — better | — |
| Update frequency | Every 4 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, Apple Watch | iPhone, iPad, Apple Watch — better |
| Requires iOS | 26.1 | 17.0 — better |
| Further details — not scored | ||
| Size | 110 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | THILO SPECHT | Lorand Barabas |
In-app purchases
Soccer Referee Timer by WTSB
- Monthly subscription14 Days trial$1.991 Month
- Annual subscription1 Month trial$17.991 Year
- Lifetime Pro$149.00
WhistleOS
- WhistleOS Pro monthly$3.991 Month
- WhistleOS Pro yearly$44.991 Year






