# Signals Generator vs COMPROVIG

The clearest difference is in-app purchases: COMPROVIG at none against Signals Generator's 14. COMPROVIG also leads on update cadence (every 6 months vs every 33 months). 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. COMPROVIG asks for nothing beyond the download.

Signals Generator ships an update every 33 months, COMPROVIG every 6 months. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Signals Generator | COMPROVIG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (29 ratings)](https://appshunter.io/ios/app/signals-generator/id1526653387/reviews)** | — |
| Number of ratings | **29** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 6 months** |
| Monetization | Free with in-app purchases | — |
| Size | 15 MB | 63 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [怀卫 张](https://appshunter.io/developer/1252544375) | [Daniel Chavarria Ospina](https://appshunter.io/developer/1579035297) |

## 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 |


### COMPROVIG

[App page](https://appshunter.io/ios/app/comprovig/id6446268018)

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

**In-app purchases:** none


## Frequently asked questions

### Is Signals Generator free?

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

### Is COMPROVIG free?

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

### Do Signals Generator or COMPROVIG have ads?

Neither Signals Generator nor COMPROVIG shows ads.

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

Signals Generator ships an update every 33 months, and COMPROVIG every 6 months. Most recently, Signals Generator was updated on October 7, 2026 and COMPROVIG on October 8, 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.*