# SignalScope X vs Frequency Generator

The clearest difference is in-app purchases: Frequency Generator at none against SignalScope X's 12. Frequency Generator also leads on iOS requirement (15 vs 18.6). SignalScope X's advantage is update cadence (every 3 weeks vs every 14 months) and ratings volume (23 vs 2). On price, rating, ads and device support there is nothing between them.

Both are free to download. SignalScope X sells 12 in-app purchases, starting at $3.49 per month. Frequency Generator asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 3.0 for SignalScope X against 3.0 for Frequency Generator. That said, the two scores are not equally well evidenced: SignalScope X has 23 ratings behind it against 2, so its average is the more settled of the two.

SignalScope X ships an update every 3 weeks, Frequency Generator every 14 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | SignalScope X | Frequency Generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (23 ratings)](https://appshunter.io/ios/app/signalscope-x/id1304775893/reviews) | [3.0 (2 ratings)](https://appshunter.io/ios/app/frequency-generator-tone-a4/id6529535310/reviews) |
| Number of ratings | **23** | 2 |
| Positive reviews | 10.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 14 months |
| Monetization | Freemium | **Free** |
| Size | 19 MB | 7 MB |
| Requires iOS | 18.6 | **15** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Faber Acoustical, LLC](https://appshunter.io/developer/284781780) | [Krzysztof Gwiazda](https://appshunter.io/developer/1546740383) |

## What reviewers say

### SignalScope X

[App page](https://appshunter.io/ios/app/signalscope-x/id1304775893)

This app provides powerful measurement and analysis tools for acoustics, audio, and electronics. It offers a free oscilloscope and subscription-based tool sets for basic, advanced, and professional needs, compatible across iPhone, iPad, and Mac.

**Highlights:** Oscilloscope, FFT Analyzer, Spectrogram Analyzer, Data Recorder, Sound Intensity Analyzer, Room Acoustics Analyzer

**Features:** Family Sharing, Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Tool Set, 1 Month | $3.49 | per month |
| Advanced Tool Set, 1 Month | $9.99 | per month |
| Pro Tool Set, 1 Month | $24.99 | per month |
| Basic Tool Set, 1 Year | $34.99 | per year |
| Advanced Tool Set, 1 Year | $99.99 | per year |
| Pro Tool Set, 1 Year | $249.99 | per year |
| 14-day Free Trial, Pro Tool Set | Free | one-time |
| Basic Tool Set 2026 | $69.99 | one-time |
| Advanced Tool Set 2026 | $199.99 | one-time |
| Advanced Tool Set 2026 from Basic | $219.99 | one-time |
| Pro Tool Set 2026 from Advanced | $309.99 | one-time |
| Pro Tool Set 2026 from Basic | $439.99 | one-time |

**What reviewers like**

- 👍 Powerful software
- 👍 Good for professional testing
- 👍 Captures faint hums
- 👍 Works well for waveforms
- 👍 Useful for guitar debugging

**What reviewers complain about**

- 💸 Expensive subscription model
- 💸 High one-time purchase cost
- 💸 Perceived as a rip-off
- 💸 Previous purchases invalidated
- 💸 Lack of upgrade path

**Reported bugs**

- Recording starts and stops
- App crashes on launch
- Oscilloscope and FFT not functioning
- SPL meter inaccurate/uncalibratable
- App not working on older devices

**Requested features**

- Manual for better understanding
- Ability to store and retrieve setups
- One-off payment option
- More intuitive user interface
- Ability to change Y-axis scale


### Frequency Generator

[App page](https://appshunter.io/ios/app/frequency-generator-tone-a4/id6529535310)

This utility app provides a simple and straightforward tuning fork. It allows users to generate any frequency between 20 Hz and 20,000 Hz, limited only by the device's speaker and human hearing.

**Highlights:** Adjustable frequency range (20 Hz - 20,000 Hz), Simple and easy to use interface, Generates audio tones, No complex settings

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

**In-app purchases:** none


## Frequently asked questions

### Is SignalScope X free?

SignalScope X is free to download, with in-app purchases available.

### Is Frequency Generator free?

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

### Which has better reviews, SignalScope X or Frequency Generator?

SignalScope X and Frequency Generator are both rated 3.0 out of 5 on the App Store, from 23 and 2 ratings respectively.

### Do SignalScope X or Frequency Generator have ads?

Neither SignalScope X nor Frequency Generator shows ads.

### Which is updated more often, SignalScope X or Frequency Generator?

SignalScope X ships an update every 3 weeks, and Frequency Generator every 14 months. Most recently, SignalScope X was updated on October 24, 2026 and Frequency Generator 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.*