# Audio RTA vs Spectrum

The clearest difference is ads: Audio RTA at none against Spectrum's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Audio RTA sells 1 one-off in-app purchase and Spectrum sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Audio RTA ships an update weekly, Spectrum every 8 days. The most recent releases landed on October 25, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Audio RTA | Spectrum |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/audio-rta-spectrum-analyzer/id6784479397/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 8 days |
| Monetization | Free | — |
| Size | 36 MB | 89 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mateus Polonini Cardoso](https://appshunter.io/developer/1530866903) | [SEONYONG LEE](https://appshunter.io/developer/6775892940) |

## What reviewers say

### Audio RTA

[App page](https://appshunter.io/ios/app/audio-rta-spectrum-analyzer/id6784479397)

This application transforms your mobile device into a real-time audio analysis tool. It allows you to monitor sound frequencies, decibel levels, and identify peaks using your device's microphone, aiding in the tuning and testing of various audio systems.

**Highlights:** Real-time RTA/FFT analyzer, dB meter, Frequency generator, Test tones, noise, and sweeps, Subwoofer test tools, Stereo channel tests

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Audio Analyzer RTA Pro | $6.99 | one-time |


### Spectrum

[App page](https://appshunter.io/ios/app/spectrum-audio-analyzer/id6787894411)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is Audio RTA free?

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

### Is Spectrum free?

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

### Do Audio RTA or Spectrum have ads?

Spectrum shows ads; Audio RTA does not.

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

Audio RTA ships an update weekly, and Spectrum every 8 days. Most recently, Audio RTA was updated on October 25, 2026 and Spectrum 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.*