# RTA Audio vs Spectrum Analyzer

The clearest difference is review sentiment: RTA Audio at 59% against Spectrum Analyzer's 5%. RTA Audio also leads on ads (none vs shown). Spectrum Analyzer's advantage is rating (4.2 vs 3.6) and update cadence (fortnightly vs every 28 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. RTA Audio sells 1 one-off in-app purchase and Spectrum Analyzer sells 13 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Spectrum Analyzer holds the better App Store score, 4.2 against 3.6. That said, the two scores are not equally well evidenced: Spectrum Analyzer has 197 ratings behind it against 31, so its average is the more settled of the two. Written reviews complicate that: 59% of RTA Audio's written reviews are positive against 5% of Spectrum Analyzer's, so the app with the better star average is not the one people write more warmly about.

RTA Audio ships an update every 28 months, Spectrum Analyzer fortnightly. The most recent releases landed on September 28, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | RTA Audio | Spectrum Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (31 ratings)](https://appshunter.io/ios/app/rta-audio/id525324684/reviews) | **[4.2 (197 ratings)](https://appshunter.io/ios/app/spectrum-analyzer-spectrogram/id981810895/reviews)** |
| Number of ratings | 31 | **197** |
| Positive reviews | **58.5% of reviews** | 5.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 28 months | **Fortnightly** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 2 MB | 132 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [New Ball s.r.o.](https://appshunter.io/developer/1178970340) | [Music Breath](https://appshunter.io/developer/1140008995) |

## What reviewers say

### RTA Audio

[App page](https://appshunter.io/ios/app/rta-audio/id525324684)

Analyze audio in real-time with detailed frequency spectrum and waveform visualizations. Record and export your audio analysis results, including spectrograms and frequency tables, for sharing or archiving.

**Highlights:** Real-time audio analysis (FFT), Recording and offline processing, Spectrogram and waveform visualization, Exportable analysis reports (PDF), Adjustable resolution and frequency scale, Peak and RMS metering

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to full version | $14.99 | one-time |


### 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


## Frequently asked questions

### Is RTA Audio free?

RTA Audio is free to download, with in-app purchases available.

### Is Spectrum Analyzer free?

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

### Which has better reviews, RTA Audio or Spectrum Analyzer?

Spectrum Analyzer is rated higher. RTA Audio averages 3.6 out of 5 from 31 ratings, while Spectrum Analyzer averages 4.2 from 197 ratings.

### Do RTA Audio or Spectrum Analyzer have ads?

Spectrum Analyzer shows ads; RTA Audio does not.

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

RTA Audio ships an update every 28 months, and Spectrum Analyzer fortnightly. Most recently, RTA Audio was updated on September 28, 2026 and Spectrum Analyzer on September 26, 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.*