# Spectrum Analyzer vs Lab | Audio

Spectrum Analyzer and Lab | Audio both sit at 4.2 stars, but that hides the real split: 100% of Lab | Audio's written reviews are positive against 5% of Spectrum Analyzer's. Lab | Audio also leads on in-app purchases (none vs 13) and ads (none vs shown). Spectrum Analyzer's advantage is ratings volume (199 vs 1) and iOS requirement (16.0 vs 27.0). On price, rating, update cadence and device support there is nothing between them.

Both are free to download. Spectrum Analyzer sells 13 in-app purchases, starting at $4.99 per 7 days. Lab | Audio asks for nothing beyond the download.

Spectrum Analyzer holds the better App Store score, 4.2 against 4.0. That said, the two scores are not equally well evidenced: Spectrum Analyzer has 199 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 5% of Spectrum Analyzer's written reviews are positive against 100% of Lab | Audio's, so the app with the better star average is not the one people write more warmly about.

Spectrum Analyzer ships an update fortnightly, Lab | Audio every 3 weeks. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Spectrum Analyzer | Lab | Audio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (199 ratings)](https://appshunter.io/ios/app/spectrum-analyzer-spectrogram/id981810895/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/lab-audio/id1617359426/reviews) |
| Number of ratings | **199** | 1 |
| Positive reviews | 5.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Freemium | **Free** |
| Size | 100 MB | 4 MB |
| Requires iOS | **16.0** | 27.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Music Breath](https://appshunter.io/developer/1140008995) | [Not Applicable](https://appshunter.io/developer/1743923679) |

## 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


### Lab | Audio

[App page](https://appshunter.io/ios/app/lab-audio/id1617359426)

Explore the world of audio with this app. It offers playback controls, real-time frequency displays, and spectrogram analysis to understand sound.

**Highlights:** Audio playback (play, pause, skip), Real-time frequency display, Spectrogram analysis, Audio metadata viewing

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Spectrum Analyzer free?

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

### Is Lab | Audio free?

Lab | Audio is free to download, with no in-app purchases.

### Which has better reviews, Spectrum Analyzer or Lab | Audio?

Spectrum Analyzer is rated higher. Spectrum Analyzer averages 4.2 out of 5 from 199 ratings, while Lab | Audio averages 4.0 from 1 ratings.

### Do Spectrum Analyzer or Lab | Audio have ads?

Spectrum Analyzer shows ads; Lab | Audio does not.

### Which is updated more often, Spectrum Analyzer or Lab | Audio?

Spectrum Analyzer ships an update fortnightly, and Lab | Audio every 3 weeks. Most recently, Spectrum Analyzer was updated on October 29, 2026 and Lab | Audio 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.*