# Audio Toolbox vs Doris by dgApps

The clearest difference is price: Doris by dgApps at Free against Audio Toolbox's $3.99. Doris by dgApps also leads on update cadence (every 3 weeks vs every 8 months). Audio Toolbox's advantage is in-app purchases (none vs 2) and iOS requirement (13 vs 17.5). On ads and device support there is nothing between them.

Doris by dgApps is free to download; Audio Toolbox costs $3.99 up front. Doris by dgApps sells 2 in-app purchases, starting at $8.99 per month. Audio Toolbox asks for nothing beyond the download.

Audio Toolbox ships an update every 8 months, Doris by dgApps every 3 weeks. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Audio Toolbox | Doris by dgApps |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/audio-toolbox/id1353387223/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 3 MB | 8 MB |
| Requires iOS | **13** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [4Pockets.com](https://appshunter.io/developer/370131860) | [dgApps](https://appshunter.io/developer/357488432) |

## What reviewers say

### Audio Toolbox

[App page](https://appshunter.io/ios/app/audio-toolbox/id1353387223)

This app provides a comprehensive suite of audio analysis tools, including a tone generator, oscilloscope, and FFT analysis engine. It allows users to create and analyze various waveforms, detect frequencies, and tune instruments with high accuracy.

**Highlights:** Tone Generator (20Hz-22KHz), Multiple Waveform Options, Fast Fourier Analysis, Audio Oscilloscope, Frequency and Note Detection, SPL Meter with LEQ, CSV Data Export

**Features:** macOS Compatibility

**In-app purchases:** none


### Doris by dgApps

[App page](https://appshunter.io/ios/app/doris-by-dgapps/id6447811358)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Doris Monthly Subscription | $8.99 | per month |
| Doris Annual Subscription | $89.99 | per year |


## Frequently asked questions

### Is Audio Toolbox free?

Audio Toolbox costs $3.99, with no in-app purchases.

### Is Doris by dgApps free?

Doris by dgApps is free to download, with in-app purchases available.

### Do Audio Toolbox or Doris by dgApps have ads?

Neither Audio Toolbox nor Doris by dgApps shows ads.

### Which is updated more often, Audio Toolbox or Doris by dgApps?

Audio Toolbox ships an update every 8 months, and Doris by dgApps every 3 weeks. Most recently, Audio Toolbox was updated on October 24, 2026 and Doris by dgApps on October 29, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*