Referee Tools Downloads & RevenueReferee Tools · App Store
Not in any tracked top chart right now.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperNAOYA ONO
CategorySports
PriceFree
Released
Rating★ 3.8 (17)
Version1.3.3
Age rating4+
First seen by us
24 Oct 2026
24 Oct 2026Full timeline · 3 events
- 🆕Referee Tools first spotted by AppInsiderJapan (found via developer)
- 📦Referee Tools version 1.3.3Fixed an issue on iOS 26.
- 🆕Referee Tools released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
3.8 ★
17 ratings
Measured
Referee Tools on the App Store
App details
App ID
1624421256
Publisher
NAOYA ONO
On the store since
May 2022
4 years on the store
Minimum OS
iOS 15.6+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN JA
Size
44 MB
Also listed in
Utilities
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
3.8 ★
17 ratings
Measured
Ratings
17
Measured
About Referee Tools
Simple and easy-to-use referee tool app.
It can be used when refereeing soccer, rugby, handball, etc.
● Basic functions
1. Timer function
Tap the time to start the timer. If you want to stop it, tap it again. The timer can be set to “countdown” or “count up”. When "countdown" is selected, a sound can be played when the timer reaches zero.
2. Whistle
Press the "Short", "Long", or “Twice” button to sound the whistle.
If the whistle icon is held down, the whistle sound will play the entire time (up to approximately 30 seconds).
3. Penalty cards
Tap a card to display it in full screen.
In the initial display, "yellow card" and "red card" are shown, but other color cards can be displayed in the settings.
It can be used when refereeing soccer, rugby, handball, etc.
● Basic functions
1. Timer function
Tap the time to start the timer. If you want to stop it, tap it again. The timer can be set to “countdown” or “count up”. When "countdown" is selected, a sound can be played when the timer reaches zero.
2. Whistle
Press the "Short", "Long", or “Twice” button to sound the whistle.
If the whistle icon is held down, the whistle sound will play the entire time (up to approximately 30 seconds).
3. Penalty cards
Tap a card to display it in full screen.
In the initial display, "yellow card" and "red card" are shown, but other color cards can be displayed in the settings.
Latest updates
1.3.3
Fixed an issue on iOS 26.
