# Signals Generator vs ECSig

The clearest difference is in-app purchases: ECSig at none against Signals Generator's 14. ECSig also leads on update cadence (every 3 months vs every 33 months) and rating (5.0 vs 4.7). Signals Generator's advantage is ratings volume (30 vs 2). On price, ads, device support and iOS requirement there is nothing between them.

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

ECSig holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Signals Generator has 30 ratings behind it against 2, so its average is the more settled of the two.

Signals Generator ships an update every 33 months, ECSig every 3 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Signals Generator | ECSig |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (30 ratings)](https://appshunter.io/ios/app/signals-generator/id1526653387/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/ecsig/id6737245267/reviews)** |
| Number of ratings | **30** | 2 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 3 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 15 MB | 29 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [怀卫 张](https://appshunter.io/developer/1252544375) | [Ecsite Inc](https://appshunter.io/developer/1529398875) |

## 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 |


### ECSig

[App page](https://appshunter.io/ios/app/ecsig/id6737245267)

This app provides a user-friendly interface to control RF signal generator devices. It allows precise customization of signal frequency and power output across multiple channels via a Bluetooth connection.

**Highlights:** Bluetooth device connection, Control 4-8 individual channels, Customize frequency and power, Save and recall device profiles, Intuitive professional interface

**In-app purchases:** none


## Frequently asked questions

### Is Signals Generator free?

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

### Is ECSig free?

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

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

ECSig is rated higher. Signals Generator averages 4.7 out of 5 from 30 ratings, while ECSig averages 5.0 from 2 ratings.

### Do Signals Generator or ECSig have ads?

Neither Signals Generator nor ECSig shows ads.

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

Signals Generator ships an update every 33 months, and ECSig every 3 months. Most recently, Signals Generator was updated on October 24, 2026 and ECSig 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.*