# FutureFolio Viewer vs Dog Whistle Clicker

The clearest difference is in-app purchases: FutureFolio Viewer at none against Dog Whistle Clicker's 1. FutureFolio Viewer also leads on ads (none vs shown) and iOS requirement (13.0 vs 18.6). Dog Whistle Clicker's advantage is review sentiment (33% vs 0%) and update cadence (every 3 weeks vs every 2 months). On price, rating, ratings volume and monetization model there is nothing between them.

Both are free to download. Dog Whistle Clicker sells 1 one-off in-app purchase. FutureFolio Viewer asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for FutureFolio Viewer against 5.0 for Dog Whistle Clicker. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 0% of FutureFolio Viewer's written reviews are positive against 33% of Dog Whistle Clicker's.

FutureFolio Viewer ships an update every 2 months, Dog Whistle Clicker every 3 weeks. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | FutureFolio Viewer | Dog Whistle Clicker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/futurefolio-viewer/id501014342/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/dog-whistle-clicker/id1258929967/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | **33.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 23 MB | 7 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [Future plc](https://appshunter.io/developer/378460265) | [cAsAxMoRe](https://appshunter.io/developer/448012278) |

## What reviewers say

### FutureFolio Viewer

[App page](https://appshunter.io/ios/app/futurefolio-viewer/id501014342)

View digital publications created with a next-generation publishing platform. Preview test builds of your magazines before publishing them to the App Store for sale.

**Highlights:** View digital publications, Preview test builds, Publish magazines to App Store, Use Apple in-app payments, Supports iPad and iPhone

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is FutureFolio Viewer free?

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

### Is Dog Whistle Clicker free?

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

### Which has better reviews, FutureFolio Viewer or Dog Whistle Clicker?

FutureFolio Viewer and Dog Whistle Clicker are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do FutureFolio Viewer or Dog Whistle Clicker have ads?

Dog Whistle Clicker shows ads; FutureFolio Viewer does not.

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

FutureFolio Viewer ships an update every 2 months, and Dog Whistle Clicker every 3 weeks. Most recently, FutureFolio Viewer was updated on November 1, 2026 and Dog Whistle Clicker on November 2, 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.*