# RTA vs Spectrum Analyzer RTA

The clearest difference is price: RTA at $4.99 against Spectrum Analyzer RTA's $19.99. RTA also leads on chart position (#100 vs unranked). Spectrum Analyzer RTA's advantage is in-app purchases (none vs 2) and review sentiment (74% vs 61%). On rating, ratings volume, update cadence and ads there is nothing between them.

RTA costs $4.99 and Spectrum Analyzer RTA $19.99 up front. RTA sells 2 one-off in-app purchases. Spectrum Analyzer RTA asks for nothing beyond the download.

Spectrum Analyzer RTA holds the better App Store score, 4.2 against 4.0. Both are backed by a comparable volume of ratings — 26 and 67 respectively. Written reviews point the same way: 61% of RTA's written reviews are positive against 74% of Spectrum Analyzer RTA's.

RTA ships an update every 3 months, Spectrum Analyzer RTA every 6 months. The most recent releases landed on October 22, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | RTA | Spectrum Analyzer RTA |
| --- | --- | --- |
| Price | **$4.99** | $19.99 |
| Rating | [4.0 (26 ratings)](https://appshunter.io/ios/app/rta/id298839433/reviews) | **[4.2 (67 ratings)](https://appshunter.io/ios/app/spectrum-analyzer-rta/id490078884/reviews)** |
| Number of ratings | 26 | **67** |
| Positive reviews | 61.0% of reviews | **73.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 6 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | **#100** | — |
| Size | 30 MB | 7 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Smith](https://appshunter.io/developer/291822462) | [ONYX Apps](https://appshunter.io/developer/356553882) |

## What reviewers say

### RTA

[App page](https://appshunter.io/ios/app/rta/id298839433)

**Currently charting:** #100 Top Paid · Music (US App Store)

Analyze audio frequencies, test speakers, and tune rooms with this professional-grade acoustical analysis tool. It offers octave and 1/3 octave modes, peak hold, and averaging, with automatic microphone compensation for accurate results.

**Highlights:** Real-time acoustical analysis, Octave and 1/3 Octave modes, Peak Hold and Average modes, Automatic microphone compensation, Save, recall, and export graphs, Interactive touch GUI, Noise curve overlays

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| STC -- Transmission Loss | $9.99 | one-time |
| Reference Curve Files | $9.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 👍 Good for quick analysis
- 👍 Accurate for price
- 👍 Useful for tuning
- 👍 Professional tool

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Freezes often
- 🐛 Incompatible with iOS updates
- 🐛 Screen display issues
- 🐛 Battery drain

**Reported bugs**

- App crashes after iOS updates (iOS 13, 15, 16, 17, 18)
- App freezes or crashes on startup
- App only displays half the screen
- App does not save analysis readings to photo roll
- App stops working on older iPads after updates

**Requested features**

- Add German language support
- Add NC and NR curves
- Make background mode optional
- Improve compatibility with newer iOS versions
- Add option to overlay readings


### Spectrum Analyzer RTA

[App page](https://appshunter.io/ios/app/spectrum-analyzer-rta/id490078884)

This real-time audio analysis app provides precision measurement and visualization for sound frequencies. It's designed for musicians and recording engineers, offering tools for room and speaker tuning, and can be used with built-in or external microphones.

**Highlights:** Octave Band Real Time Analyzer, FFT Plot, Spectrograph module, Test Tone Generator, White/Pink Noise Generator

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RTA free?

RTA costs $4.99, and also offers in-app purchases.

### Is Spectrum Analyzer RTA free?

Spectrum Analyzer RTA costs $19.99, with no in-app purchases.

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

Spectrum Analyzer RTA is rated higher. RTA averages 4.0 out of 5 from 26 ratings, while Spectrum Analyzer RTA averages 4.2 from 67 ratings.

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

Neither RTA nor Spectrum Analyzer RTA shows ads.

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

RTA ships an update every 3 months, and Spectrum Analyzer RTA every 6 months. Most recently, RTA was updated on October 22, 2026 and Spectrum Analyzer RTA on October 20, 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.*