# Key vs VoilàSense

The clearest difference is price: VoilàSense at Free against Key's $0.99. Key's advantage is in-app purchases (none vs 4) and iOS requirement (15.6 vs 26.0). On ads and device support there is nothing between them.

VoilàSense is free to download; Key costs $0.99 up front. VoilàSense sells 4 in-app purchases, starting at $4.99 per month. Key asks for nothing beyond the download.

## The numbers

| Metric | Key | VoilàSense |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/key-tone-decoder/id6738107351/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Daily |
| Monetization | Paid | — |
| Size | 1 MB | 16 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [NANO ELECTRONICS RESEARCH MUHENDISLIK ARASTIRMA GELISTIRME LIMITED SIRKETI](https://appshunter.io/developer/1674573382) | [NeoVoilà](https://appshunter.io/developer/1870574681) |

## What reviewers say

### Key

[App page](https://appshunter.io/ios/app/key-tone-decoder/id6738107351)

This application uses your device's microphone to capture and decode dual-tone multi-frequency (DTMF) signals in real-time. It displays the decoded numbers instantly on your screen, making it a useful tool for professionals and tech enthusiasts.

**Highlights:** Real-time DTMF signal decoding, Uses device microphone, Displays decoded numbers instantly, Suitable for professionals, Useful for tech enthusiasts

**Features:** macOS Compatibility

**In-app purchases:** none


### VoilàSense

[App page](https://appshunter.io/ios/app/voilasense-dashboard-builder/id6758050037)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VoilàSense Plus | $4.99 | per month |
| VoilàSense Pro | $9.99 | per month |
| VoilàSense Plus | $49.99 | per year |
| VoilàSense Pro | $99.99 | per year |


## Frequently asked questions

### Is Key free?

Key costs $0.99, with no in-app purchases.

### Is VoilàSense free?

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

### Do Key or VoilàSense have ads?

Neither Key nor VoilàSense 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.*