# Tone generator vs DSP MASTER

The clearest difference is in-app purchases: DSP MASTER at none against Tone generator's 3. DSP MASTER also leads on ads (none vs shown) and iOS requirement (9.0 vs 12.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Tone generator sells 3 one-off in-app purchases. DSP MASTER asks for nothing beyond the download.

Tone generator ships an update every 5 months, DSP MASTER every 4 months. Both last shipped on September 17, 2026.

## The numbers

| Metric | Tone generator | DSP MASTER |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (152 ratings)](https://appshunter.io/ios/app/tone-generator/id457003837/reviews)** | — |
| Number of ratings | **152** | — |
| Positive reviews | 67.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 6 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [michael heinz](https://appshunter.io/developer/292745639) | [Audio Design](https://appshunter.io/developer/1579008816) |

## What reviewers say

### Tone generator

[App page](https://appshunter.io/ios/app/tone-generator/id457003837)

Create various periodic signals with adjustable frequency and amplitude for testing electronic circuits or tuning instruments. Features include a metronome, a real-time tuner, and options for generating different noise types and tone sequences. It also offers unique features for hearing tests and party games.

**Highlights:** Generate periodic signals, Adjustable frequency and amplitude, Integrated instrument tuner, Metronome for practice, Hearing ability tests, Generate white/pink noise, Create tone sequences

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Extra-Feature 1 | $1.99 | one-time |
| No advertising | $1.99 | one-time |
| Upgrade to full version | $3.99 | one-time |

**What reviewers like**

- 🚀 Works every time!
- 🚀 Awesome application for generating tones and studying sound
- 👍 Very useful
- 👍 Genius
- 👍 Great app to make your tones

**What reviewers complain about**

- 🐛 Doesn't go lower than 10hz
- 🔍 Ruined by ads
- 🔍 Way too many ads
- 🔍 Crashes before I can export even though I paid for the feature
- 🔍 Fake app. Buying the upgrade doesn't do anything. There is no support. You can't export like it says you can. It's a scam.

**Reported bugs**

- Doesn't go lower than 10hz
- Crashes before I can export even though I paid for the feature
- Fake app. Buying the upgrade doesn't do anything. There is no support. You can't export like it says you can. It's a scam.
- app is modified
- No tone

**Requested features**

- Wish I had a manual  that explains a couple functions
- More precise way to select the frequency
- Playing of multiple tomes
- Manually enter a frequency
- More than one voice


### DSP MASTER

[App page](https://appshunter.io/ios/app/dsp-master/id6502436875)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tone generator free?

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

### Is DSP MASTER free?

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

### Do Tone generator or DSP MASTER have ads?

Tone generator shows ads; DSP MASTER does not.

### Which is updated more often, Tone generator or DSP MASTER?

Tone generator ships an update every 5 months, and DSP MASTER every 4 months. Most recently, Tone generator was updated on September 17, 2026 and DSP MASTER on September 17, 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.*