# RefsWatch Dev vs Whistle

The clearest difference is iOS requirement: RefsWatch Dev at 15.1 against Whistle's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | RefsWatch Dev | Whistle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Size | 37 MB | 7 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Mac Beagan](https://appshunter.io/developer/1705307134) | [Suzanne Garrett](https://appshunter.io/developer/1808066473) |

## What reviewers say

### RefsWatch Dev

[App page](https://appshunter.io/ios/app/refswatch-dev/id6463956529)

**Features:** macOS Compatibility

**In-app purchases:** none


### Whistle

[App page](https://appshunter.io/ios/app/whistle-sports-timer/id6754412929)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RefsWatch Dev free?

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

### Is Whistle free?

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

### Do RefsWatch Dev or Whistle have ads?

Neither RefsWatch Dev nor Whistle shows ads.

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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.*