# Spectrum Lab vs Audio RTA

The clearest difference is in-app purchases: Spectrum Lab at none against Audio RTA's 1. Spectrum Lab also leads on ratings volume (3 vs 1). Audio RTA's advantage is rating (5.0 vs 4.7) and iOS requirement (15.0 vs 18.0). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Audio RTA sells 1 one-off in-app purchase. Spectrum Lab asks for nothing beyond the download.

Audio RTA holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

## The numbers

| Metric | Spectrum Lab | Audio RTA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (3 ratings)](https://appshunter.io/ios/app/spectrum-lab-audio-analyzer/id6760655721/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/audio-rta-spectrum-analyzer/id6784479397/reviews)** |
| Number of ratings | **3** | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Weekly |
| Monetization | Free | Free |
| Size | 3 MB | 54 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [G-United](https://appshunter.io/developer/1885541302) | [Mateus Polonini Cardoso](https://appshunter.io/developer/1530866903) |

## What reviewers say

### Spectrum Lab

[App page](https://appshunter.io/ios/app/spectrum-lab-audio-analyzer/id6760655721)

This real-time audio spectrum analyzer provides a fast, responsive display to monitor live frequencies from various input sources. It helps analyze music, inspect mixes, and understand sound environments. Designed for simplicity, it requires no manual configuration for immediate use.

**Highlights:** Real-time frequency analysis, Multiple input source support, Peak detection for signal changes, Music and mix inspection, Environmental sound analysis, Audio equipment testing, Simple, automatic operation

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 | $10.99 | one-time |


## Frequently asked questions

### Is Spectrum Lab free?

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

### Is Audio RTA free?

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

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

Audio RTA is rated higher. Spectrum Lab averages 4.7 out of 5 from 3 ratings, while Audio RTA averages 5.0 from 1 ratings.

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

Neither Spectrum Lab nor Audio RTA shows ads.

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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.*