# RF Tools vs Signals Generator

The clearest difference is rating: Signals Generator at 4.7 against RF Tools's 3.0. Signals Generator also leads on ratings volume (29 vs 3) and device support (4 vs 2). RF Tools's advantage is in-app purchases (none vs 14) and update cadence (every 14 months vs every 33 months). On price, review sentiment, ads and iOS requirement there is nothing between them.

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

Signals Generator holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Signals Generator has 29 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 60% of RF Tools's written reviews are positive against 67% of Signals Generator's.

RF Tools ships an update every 14 months, Signals Generator every 33 months. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | RF Tools | Signals Generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (3 ratings)](https://appshunter.io/ios/app/rf-tools/id525678686/reviews) | **[4.7 (29 ratings)](https://appshunter.io/ios/app/signals-generator/id1526653387/reviews)** |
| Number of ratings | 3 | **29** |
| Positive reviews | 60.0% of reviews | **66.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 14 months** | Every 33 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 12 MB | 15 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [HUBER + SUHNER AG](https://appshunter.io/developer/525678889) | [怀卫 张](https://appshunter.io/developer/1252544375) |

## What reviewers say

### RF Tools

[App page](https://appshunter.io/ios/app/rf-tools/id525678686)

This utility app helps engineers and students calculate and convert RF-specific values like impedance, wavelength, and return loss. It also includes a calculator for comparing RF cables and assemblies, and provides access to product catalogs and branch information.

**Highlights:** RF value conversion (impedance, wavelength, return loss), RF assembly calculator, dB calculator, Product catalog access, Branch locator

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is RF Tools free?

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

### Is Signals Generator free?

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

### Which has better reviews, RF Tools or Signals Generator?

Signals Generator is rated higher. RF Tools averages 3.0 out of 5 from 3 ratings, while Signals Generator averages 4.7 from 29 ratings.

### Do RF Tools or Signals Generator have ads?

Neither RF Tools nor Signals Generator shows ads.

### Which is updated more often, RF Tools or Signals Generator?

RF Tools ships an update every 14 months, and Signals Generator every 33 months. Most recently, RF Tools was updated on October 5, 2026 and Signals Generator on October 7, 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.*