# Spectrum vs DecibelRTA

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

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

## The numbers

| Metric | Spectrum | DecibelRTA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 8 days | — |
| Size | 91 MB | 6 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [SEONYONG LEE](https://appshunter.io/developer/6775892940) | [Olivier ADAM](https://appshunter.io/developer/6804323644) |

## What reviewers say

### 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 | $17.99 | one-time |


### DecibelRTA

[App page](https://appshunter.io/ios/app/decibelrta/id6813196740)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DecibelRTA PRO | $19.99 | one-time |


## Frequently asked questions

### Is Spectrum free?

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

### Is DecibelRTA free?

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

### Do Spectrum or DecibelRTA have ads?

Spectrum shows ads; DecibelRTA does not.

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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.*