# Dog Whistle Clicker vs Syscope

The clearest difference is ads: Syscope at none against Dog Whistle Clicker's shown. Syscope also leads on update cadence (weekly vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Dog Whistle Clicker sells 1 one-off in-app purchase and Syscope sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Dog Whistle Clicker ships an update every 3 weeks, Syscope weekly. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Dog Whistle Clicker | Syscope |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dog-whistle-clicker/id1258929967/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 7 MB | 6 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [cAsAxMoRe](https://appshunter.io/developer/448012278) | [CHUNG-HO LEE](https://appshunter.io/developer/502429481) |

## What reviewers say

### Dog Whistle Clicker

[App page](https://appshunter.io/ios/app/dog-whistle-clicker/id1258929967)

This utility app transforms your device into an adjustable frequency whistle to help you discover the best training signals for your dog. It offers precise control over frequency, intensity, and modulation, allowing you to save and replay effective sounds.

**Highlights:** Adjustable high-frequency dog whistle, Real-time frequency, intensity, and modulation control, Save and replay favorite signals, Clear kHz readout, Redesigned interface for iPhone and iPad, Option to keep screen awake during testing

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Syscope

[App page](https://appshunter.io/ios/app/syscope/id6814094630)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Syscope Pro | $2.99 | one-time |


## Frequently asked questions

### Is Dog Whistle Clicker free?

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

### Is Syscope free?

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

### Do Dog Whistle Clicker or Syscope have ads?

Dog Whistle Clicker shows ads; Syscope does not.

### Which is updated more often, Dog Whistle Clicker or Syscope?

Dog Whistle Clicker ships an update every 3 weeks, and Syscope weekly. Most recently, Dog Whistle Clicker was updated on October 22, 2026 and Syscope on October 24, 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.*