# Spectrum Analyzer vs Frequency Generator

The clearest difference is ads: Frequency Generator at none against Spectrum Analyzer's shown. Frequency Generator also leads on review sentiment (24% vs 5%) and rating (4.4 vs 4.2). On price, ratings volume, update cadence and in-app purchases there is nothing between them.

Both are free to download. Spectrum Analyzer sells 13 in-app purchases, starting at $4.99 per 7 days and Frequency Generator sells 7 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

Frequency Generator holds the better App Store score, 4.4 against 4.2. Both are backed by a comparable volume of ratings — 198 and 82 respectively. Written reviews point the same way: 5% of Spectrum Analyzer's written reviews are positive against 24% of Frequency Generator's.

Spectrum Analyzer ships an update fortnightly, Frequency Generator every 3 weeks. Both last shipped on October 14, 2026.

## The numbers

| Metric | Spectrum Analyzer | Frequency Generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (198 ratings)](https://appshunter.io/ios/app/spectrum-analyzer-spectrogram/id981810895/reviews) | **[4.4 (82 ratings)](https://appshunter.io/ios/app/frequency-generator-tone-and-hz/id1607976184/reviews)** |
| Number of ratings | **198** | 82 |
| Positive reviews | 5.0% of reviews | **23.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Freemium | Freemium |
| Size | 100 MB | 26 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Music Breath](https://appshunter.io/developer/1140008995) | [Sunshine Software Labs](https://appshunter.io/developer/1788219451) |

## What reviewers say

### Spectrum Analyzer

[App page](https://appshunter.io/ios/app/spectrum-analyzer-spectrogram/id981810895)

Visualize audio frequencies with real-time analysis. Features include a sound level meter, multichannel harmonic analysis, and adjustable graphical representations. Gain insights into your sound environment with advanced tools.

**Highlights:** Sound level meter, Multichannel harmonic analysis, Adjustable graphics, AI-powered sound source analyzer, Real-time analysis, FFT analysis

**Features:** macOS Compatibility

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pitch Finder: Audio Visualizer | $4.99 | per 7 days |
| Pitch Finder: Audio Visualizer | $9.99 | per month |
| One Month Sale | $9.99 | per month |
| 1 Week Subscription | $9.99 | per 7 days |
| 1 Year Sub. with discount | $19.99 | per year |
| 1 Month Subscription | $19.99 | per month |
| 3 Month Subscription | $25.99 | per 3 months |
| 1 Year Subscription | $39.99 | per year |
| 2 months subscription | $39.99 | per 2 months |
| No Ads | $9.99 | one-time |
| Additional Settings Controls | $15.99 | one-time |
| Full Pack + No Ads | $19.99 | one-time |
| Get More | $19.99 | one-time |

**What reviewers like**

- ✅ Accurate frequency identification
- ✅ Clear and easy-to-read display
- ✅ Useful noise floor setup feature
- ✅ Works well when ads are removed

**What reviewers complain about**

- 💰 Extremely aggressive monetization strategy
- 📢 Excessive and intrusive ads
- 🔊 Loud ads that ignore device mute settings
- 🚫 Requires subscription/payment to access core features
- 😤 Deceptive purchase practices and accidental charges

**Reported bugs**

- App becomes unusable after iOS 16 update
- Crashes immediately on iPhone 5 with iOS 7
- Cannot exit app on iPhone X without reboot
- App freezes when changing settings or views
- Inaccurate frequency readings

**Requested features**

- Audio file import functionality
- Customizable background colors for chroma key compatibility
- Ability to record audio instead of only analyzing
- Better documentation and help files
- Improved sensitivity for detecting soft sounds


### Frequency Generator

[App page](https://appshunter.io/ios/app/frequency-generator-tone-and-hz/id1607976184)

Generate sound waves from 1Hz to 40000Hz with various waveforms. Analyze audio frequencies, test hearing, and use for relaxation or speaker cleaning. Offers a sleep timer for peaceful rest.

**Highlights:** Multiple waveform generation (Sine, Triangle, Sawtooth, Square), Real-time frequency and sound level analysis, Hearing test and monitoring, Sleep timer for relaxation, Speaker cleaning function, Educational sound wave exploration

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7 Day Free Then Get Premium | $9.99 | per year |
| 3 Days Free Trial Weekly VIP | $9.99 | per 7 days |
| Get Premium Monthly | $9.99 | per month |
| 3 Days Free Trial then Get Premium | $19.99 | per month |
| Get Premium Annual | $49.99 | per year |
| 7 Day Free Yearly VIP | $49.99 | per year |
| Get Premium One Time Purchase | $19.99 | one-time |


## Frequently asked questions

### Is Spectrum Analyzer free?

Spectrum Analyzer is free to download, with in-app purchases available.

### Is Frequency Generator free?

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

### Which has better reviews, Spectrum Analyzer or Frequency Generator?

Frequency Generator is rated higher. Spectrum Analyzer averages 4.2 out of 5 from 198 ratings, while Frequency Generator averages 4.4 from 82 ratings.

### Do Spectrum Analyzer or Frequency Generator have ads?

Spectrum Analyzer shows ads; Frequency Generator does not.

### Which is updated more often, Spectrum Analyzer or Frequency Generator?

Spectrum Analyzer ships an update fortnightly, and Frequency Generator every 3 weeks. Most recently, Spectrum Analyzer was updated on October 14, 2026 and Frequency Generator on October 14, 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.*