# AudioTools, dB, Sound & Audio vs S

The clearest difference is price: S at Free against AudioTools, dB, Sound & Audio's $19.99. S also leads on in-app purchases (none vs 11). AudioTools, dB, Sound & Audio's advantage is chart position (#36 vs unranked) and device support. On iOS requirement there is nothing between them.

S is free to download; AudioTools, dB, Sound & Audio costs $19.99 up front. AudioTools, dB, Sound & Audio sells 11 in-app purchases, starting at $9.99 per month. S asks for nothing beyond the download.

## The numbers

| Metric | AudioTools, dB, Sound & Audio | S |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | **[4.8 (5.1K ratings)](https://appshunter.io/ios/app/audiotools-db-sound-and-audio/id325307477/reviews)** | — |
| Number of ratings | **5.1K** | — |
| Positive reviews | 75.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Fortnightly | — |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#36** | — |
| Size | 96 MB | 10 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Smith](https://appshunter.io/developer/291822462) | [Olivier DANIEL](https://appshunter.io/developer/1096092600) |

## What reviewers say

### AudioTools, dB, Sound & Audio

[App page](https://appshunter.io/ios/app/audiotools-db-sound-and-audio/id325307477)

**Currently charting:** #36 Top Paid · Music (US App Store)

This professional audio analysis app offers a comprehensive suite of tools for acoustic measurements, including SPL, RTA, and FFT. It calibrates device microphones for accurate results and allows for the addition of powerful optional modules for advanced analysis.

**Highlights:** SPL Meter with A/C weighting, Real Time Analyzer (RTA), Fast Fourier Transform (FFT) analysis, Speaker Polarity Test, Audio Oscilloscope, Signal Generator, Audio Recorder

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All-In Module Access | $9.99 | per month |
| VU Meter | $2.99 | one-time |
| Polarity Test Module | $3.99 | one-time |
| ETC Module | $5.99 | one-time |
| Speaker Distortion | $5.99 | one-time |
| SPL Pro Module | $7.99 | one-time |
| SPL Graph Module | $9.99 | one-time |
| SPL Traffic Light | $9.99 | one-time |
| SoundScope VR | $24.99 | one-time |
| LARSA | $29.99 | one-time |
| IR Module | $49.99 | one-time |

**What reviewers like**

- 👍 Useful audio tools
- 🚀 Regularly updated
- 💡 Industry-standard features
- 👍 Accurate measurements
- 👍 Great support

**What reviewers complain about**

- 🔒 Many features locked behind paywall
- 🐛 Buggy iOS port
- 🔒 Expensive in-app purchases
- 🐛 Inconsistent functionality
- 🐛 Microphone issues

**Reported bugs**

- Crashes on launch
- Inaccurate SPL and frequency measurements
- Compatibility issues with iOS updates

**Requested features**

- Add manual
- Improve file export and sharing
- Improve user interface
- Add support for external microphones


### S

[App page](https://appshunter.io/ios/app/s-link-plus/id6474423477)

**In-app purchases:** none


## Frequently asked questions

### Is AudioTools, dB, Sound & Audio free?

AudioTools, dB, Sound & Audio costs $19.99, and also offers in-app purchases.

### Is S free?

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

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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.*