# Signals Generator vs Frequency Generator

The clearest difference is review sentiment: Frequency Generator at 100% against Signals Generator's 67%. Frequency Generator also leads on update cadence (monthly vs every 33 months) and rating (5.0 vs 4.7). Signals Generator's advantage is device support (4 vs 2) and ratings volume (29 vs 8). On price, ads, 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 Frequency Generator sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Frequency Generator holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 29 and 8 respectively. Written reviews point the same way: 67% of Signals Generator's written reviews are positive against 100% of Frequency Generator's.

Signals Generator ships an update every 33 months, Frequency Generator monthly. The most recent releases landed on September 20, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Signals Generator | Frequency Generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (29 ratings)](https://appshunter.io/ios/app/signals-generator/id1526653387/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/frequency-generator/id6468866671/reviews)** |
| Number of ratings | **29** | 8 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 33 months | **Monthly** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 15 MB | 21 MB |
| Requires iOS | **15.6** | 18.3 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [怀卫 张](https://appshunter.io/developer/1252544375) | [Manfred Kuegel](https://appshunter.io/developer/1520736594) |

## 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 |


### Frequency Generator

[App page](https://appshunter.io/ios/app/frequency-generator/id6468866671)

Generate precise audio tones for sleep, focus, and relaxation. Explore a wide frequency range, shape waveforms, and access presets like Solfeggio frequencies. An optional Pro upgrade unlocks all features.

**Highlights:** Wide frequency range (1 Hz - 22,000 Hz), Multiple waveforms (sine, square, sawtooth, triangle), Background audio playback, Solfeggio frequencies and musical notes, Binaural beats and isochronic tones, Saved and pinned tone presets, Lock-screen and Control Center controls

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $4.99 | per 7 days |
| Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Signals Generator free?

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

### Is Frequency Generator free?

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

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

Frequency Generator is rated higher. Signals Generator averages 4.7 out of 5 from 29 ratings, while Frequency Generator averages 5.0 from 8 ratings.

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

Neither Signals Generator nor Frequency Generator shows ads.

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

Signals Generator ships an update every 33 months, and Frequency Generator monthly. Most recently, Signals Generator was updated on September 20, 2026 and Frequency Generator on September 24, 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.*