# Signals Generator vs Tone Generator

The clearest difference is ads: Signals Generator at none against Tone Generator's shown. Signals Generator also leads on device support (4 vs 2). Tone Generator's advantage is update cadence (every 4 months vs every 33 months) and review sentiment (84% vs 67%). On price, rating, in-app purchases and monetization model there is nothing between them.

Both are free to download. Signals Generator sells 14 one-off in-app purchases and Tone Generator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Signals Generator against 4.8 for Tone Generator. Both are backed by a comparable volume of ratings — 29 and 138 respectively. Written reviews are what separate them: 67% of Signals Generator's written reviews are positive against 84% of Tone Generator's.

Signals Generator ships an update every 33 months, Tone Generator every 4 months. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Signals Generator | Tone Generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (29 ratings)](https://appshunter.io/ios/app/signals-generator/id1526653387/reviews) | **[4.8 (138 ratings)](https://appshunter.io/ios/app/tone-generator-frequency-app/id1561496708/reviews)** |
| Number of ratings | 29 | **138** |
| Positive reviews | 66.7% of reviews | **83.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 33 months | **Every 4 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 15 MB | 6 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [怀卫 张](https://appshunter.io/developer/1252544375) | [Tevfik Yucek](https://appshunter.io/developer/566982862) |

## What reviewers say

### Signals Generator

[App page](https://appshunter.io/ios/app/signals-generator/id1526653387)

Transform your mobile device into a dual-channel signal generator for sound and audio electric signals. Offers a wide variety of waveform types and customizable parameters like amplitude, frequency, and phase. Ideal for professionals and hobbyists for signal generation and circuit measurement.

**Highlights:** Dual-channel signal generation, Multiple waveform types, Adjustable amplitude, frequency, and phase, Independent channel control, Zoomable waveform display, Interface color selection

**Features:** Vision Pro support

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sine Wave | $0.99 | one-time |
| Square Wave | $0.99 | one-time |
| Gaussian Noise | $0.99 | one-time |
| Uniformly distributed noise | $0.99 | one-time |
| Pink Noise | $0.99 | one-time |
| Red (brown) noise | $0.99 | one-time |
| Maximum Length Sequence | $0.99 | one-time |
| Rayleigh Noise | $0.99 | one-time |
| Sawtooth Wave | $0.99 | one-time |
| Gamma Noise | $0.99 | one-time |
| Functional Wave | $2.99 | one-time |
| Sweep Signal | $2.99 | one-time |
| All Noise Signals | $3.99 | one-time |
| All type of signals | $7.99 | one-time |


### Tone Generator

[App page](https://appshunter.io/ios/app/tone-generator-frequency-app/id1561496708)

Generate various audio tones like sine, square, sawtooth, and triangle waves across a wide frequency range. Adjust frequencies by swiping and utilize built-in features for fun hearing tests or to clean your device's speaker.

**Highlights:** Sine, square, sawtooth, triangle wave generation, Adjustable frequency via swipe, Built-in hearing test sweep, Speaker cleaning function, Large frequency range

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Advertisements | $2.99 | one-time |


## Frequently asked questions

### Is Signals Generator free?

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

### Is Tone Generator free?

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

### Which has better reviews, Signals Generator or Tone Generator?

Tone Generator is rated higher. Signals Generator averages 4.7 out of 5 from 29 ratings, while Tone Generator averages 4.8 from 138 ratings.

### Do Signals Generator or Tone Generator have ads?

Tone Generator shows ads; Signals Generator does not.

### Which is updated more often, Signals Generator or Tone Generator?

Signals Generator ships an update every 33 months, and Tone Generator every 4 months. Most recently, Signals Generator was updated on October 7, 2026 and Tone Generator on October 11, 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.*