# Tone Scope Lab vs Spectrum

The clearest difference is in-app purchases: Tone Scope Lab at none against Spectrum's 1. On price, update cadence, ads and device support there is nothing between them.

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

Tone Scope Lab ships an update every 5 days, Spectrum every 8 days. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Tone Scope Lab | Spectrum |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 5 days** | Every 8 days |
| Size | 25 MB | 89 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yosuke Ouchi](https://appshunter.io/developer/1877354991) | [SEONYONG LEE](https://appshunter.io/developer/6775892940) |

## What reviewers say

### Tone Scope Lab

[App page](https://appshunter.io/ios/app/tone-scope-lab/id6780329595)

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

**In-app purchases:** none


### 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 Tone Scope Lab free?

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

### Is Spectrum free?

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

### Do Tone Scope Lab or Spectrum have ads?

Both Tone Scope Lab and Spectrum show ads.

### Which is updated more often, Tone Scope Lab or Spectrum?

Tone Scope Lab ships an update every 5 days, and Spectrum every 8 days. Most recently, Tone Scope Lab was updated on October 1, 2026 and Spectrum on October 8, 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.*