# Whistle Timer vs Referee Watch PRO

The clearest difference is monetization model: Whistle Timer at free with in-app purchases against Referee Watch PRO's subscription. Referee Watch PRO's advantage is update cadence (fortnightly vs every 10 months) and review sentiment (55% vs 29%). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Whistle Timer sells 1 one-off in-app purchase and Referee Watch PRO sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.4 for Whistle Timer against 4.4 for Referee Watch PRO. Both are backed by a comparable volume of ratings — 99 and 38 respectively. Written reviews are what separate them: 29% of Whistle Timer's written reviews are positive against 55% of Referee Watch PRO's.

Whistle Timer ships an update every 10 months, Referee Watch PRO fortnightly. The most recent releases landed on September 15, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Whistle Timer | Referee Watch PRO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (99 ratings)](https://appshunter.io/ios/app/whistle-timer/id1279336519/reviews) | [4.4 (38 ratings)](https://appshunter.io/ios/app/referee-watch-pro/id1346806001/reviews) |
| Number of ratings | **99** | 38 |
| Positive reviews | 28.6% of reviews | **54.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Fortnightly** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 4 MB | 3 MB |
| Requires iOS | **15** | 16.0 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | +4 | 4+ |
| Developer | [Applorium Ltd](https://appshunter.io/developer/1688522804) | [Kevin Hartmann](https://appshunter.io/developer/1527545084) |

## What reviewers say

### Whistle Timer

[App page](https://appshunter.io/ios/app/whistle-timer/id1279336519)

Create custom workout schedules with customizable work and break intervals. Save your training plans for future use and focus on your fitness goals. The app can run in the background to keep your workout on track.

**Highlights:** Customizable workout schedules, Add custom breaks, Save training plans, Background operation, Whistle sound option

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all settings | $2.99 | one-time |


### Referee Watch PRO

[App page](https://appshunter.io/ios/app/referee-watch-pro/id1346806001)

This app transforms your Apple Watch into a sophisticated tool for referees, offering precise match timing and in-depth performance analysis. It supports multiple sports with customizable presets and securely stores your health data via Apple Health.

**Highlights:** Advanced match timing, Multiple sports support, Performance analytics, Customizable match presets, Secure data storage, Apple Health integration

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Annual | $29.99 | per year |


## Frequently asked questions

### Is Whistle Timer free?

Whistle Timer is free to download, with in-app purchases available.

### Is Referee Watch PRO free?

Referee Watch PRO is free to download, with in-app purchases available.

### Which has better reviews, Whistle Timer or Referee Watch PRO?

Whistle Timer and Referee Watch PRO are both rated 4.4 out of 5 on the App Store, from 99 and 38 ratings respectively.

### Do Whistle Timer or Referee Watch PRO have ads?

Neither Whistle Timer nor Referee Watch PRO shows ads.

### Which is updated more often, Whistle Timer or Referee Watch PRO?

Whistle Timer ships an update every 10 months, and Referee Watch PRO fortnightly. Most recently, Whistle Timer was updated on September 15, 2026 and Referee Watch PRO on October 12, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*