# TeamWhistle vs REF!

The clearest difference is in-app purchases: TeamWhistle at none against REF!'s 2. TeamWhistle also leads on iOS requirement (13.0 vs 18.0). REF!'s advantage is update cadence (weekly vs every 6 weeks). On price, ads and device support there is nothing between them.

Both are free to download. REF! sells 2 in-app purchases, starting at $2.99 per month. TeamWhistle asks for nothing beyond the download.

TeamWhistle ships an update every 6 weeks, REF! weekly. The most recent releases landed on September 12, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | TeamWhistle | REF! |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Size | 9 MB | 17 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Homerus Hoogland](https://appshunter.io/developer/1872604288) | [Rodrigo Vicente Valmorisco](https://appshunter.io/developer/1896652752) |

## What reviewers say

### TeamWhistle

[App page](https://appshunter.io/ios/app/teamwhistle/id6758384452)

**In-app purchases:** none


### REF!

[App page](https://appshunter.io/ios/app/ref/id6769361893)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| REF! PRO Monthly | $2.99 | per month |
| REF! PRO Yearly | $14.99 | per year |


## Frequently asked questions

### Is TeamWhistle free?

TeamWhistle is free to download, with no in-app purchases.

### Is REF! free?

REF! is free to download, with in-app purchases available.

### Do TeamWhistle or REF! have ads?

Neither TeamWhistle nor REF! shows ads.

### Which is updated more often, TeamWhistle or REF!?

TeamWhistle ships an update every 6 weeks, and REF! weekly. Most recently, TeamWhistle was updated on September 12, 2026 and REF! on October 1, 2026.

---

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