# Signals Generator vs Signal (intercom)

The clearest difference is in-app purchases: Signal (intercom) at none against Signals Generator's 14. Signal (intercom) also leads on review sentiment (100% vs 67%) and update cadence (every 2 days vs every 33 months). Signals Generator's advantage is rating (4.7 vs 4.5). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Signals Generator sells 14 one-off in-app purchases. Signal (intercom) asks for nothing beyond the download.

Signals Generator holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 30 and 14 respectively. Written reviews complicate that: 67% of Signals Generator's written reviews are positive against 100% of Signal (intercom)'s, so the app with the better star average is not the one people write more warmly about.

Signals Generator ships an update every 33 months, Signal (intercom) every 2 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Signals Generator | Signal (intercom) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (30 ratings)](https://appshunter.io/ios/app/signals-generator/id1526653387/reviews)** | [4.5 (14 ratings)](https://appshunter.io/ios/app/signal-intercom/id1598868014/reviews) |
| Number of ratings | **30** | 14 |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 2 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 15 MB | 38 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [怀卫 张](https://appshunter.io/developer/1252544375) | [Matthew Takao](https://appshunter.io/developer/1498410355) |

## 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 |


### Signal (intercom)

[App page](https://appshunter.io/ios/app/signal-intercom/id1598868014)

This app provides a simple intercom system for quick communication. Create or join a "Signal" to use pre-set buttons for instant messaging in specific scenarios, avoiding unnecessary noise or lengthy conversations.

**Highlights:** Create or join communication 'Signals', Use quick communication buttons, Instant messaging for specific scenarios, Minimalist design, Hypothetical use case examples

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Signals Generator free?

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

### Is Signal (intercom) free?

Signal (intercom) is free to download, with no in-app purchases.

### Which has better reviews, Signals Generator or Signal (intercom)?

Signals Generator is rated higher. Signals Generator averages 4.7 out of 5 from 30 ratings, while Signal (intercom) averages 4.5 from 14 ratings.

### Do Signals Generator or Signal (intercom) have ads?

Neither Signals Generator nor Signal (intercom) shows ads.

### Which is updated more often, Signals Generator or Signal (intercom)?

Signals Generator ships an update every 33 months, and Signal (intercom) every 2 days. Most recently, Signals Generator was updated on October 24, 2026 and Signal (intercom) on October 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.*