TTS Scorekeeper vs WhistleOS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TTS Scorekeeper
Easily track hockey game events like lineups, penalties, and goalie changes in real-time. Control traditional or video scoreboards with a modern interface designed for speed.
- Real-time event tracking
- Lineup management
- Penalty tracking
- Goalie change logging
- Scoreboard control
- Sleek interface
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TTS Scorekeeper is the ultimate solution for keeping score of hockey games at any level, all while the action is taking place. Track lineups, scoring, penalty, goalie change and other event data, as well as control your traditional or video scoreboards, all from a sleek, updated interface designed to quickly capture game data. Hockey is a fast game. Your scoring tools should keep up.
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 in-app purchases: TTS Scorekeeper at none against WhistleOS's 2. WhistleOS's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement 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. WhistleOS sells 2 in-app purchases, starting at $3.99 per month. TTS Scorekeeper asks for nothing beyond the download.
TTS Scorekeeper ships an update fortnightly, WhistleOS every 11 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | TTS Scorekeeper | WhistleOS |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 36 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Time to Score, Inc | Lorand Barabas |
In-app purchases
TTS Scorekeeper
No in-app purchases
WhistleOS
- WhistleOS Pro monthly$3.991 Month
- WhistleOS Pro yearly$44.991 Year
Questions
Is TTS Scorekeeper free?
Is WhistleOS free?
Do TTS Scorekeeper or WhistleOS have ads?
Which is updated more often, TTS Scorekeeper or WhistleOS?
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