# RosetApp vs Spectrum

The clearest difference is in-app purchases: RosetApp at none against Spectrum's 1. RosetApp also leads on ads (none vs shown). Spectrum's advantage is update cadence (every 8 days vs monthly). On price, device support and iOS requirement there is nothing between them.

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

RosetApp ships an update monthly, Spectrum every 8 days. The most recent releases landed on October 12, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | RosetApp | Spectrum |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 8 days** |
| Size | 65 MB | 89 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Miguel Angel Gutierrez](https://appshunter.io/developer/1896766285) | [SEONYONG LEE](https://appshunter.io/developer/6775892940) |

## What reviewers say

### RosetApp

[App page](https://appshunter.io/ios/app/rosetapp/id6770888902)

**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 RosetApp free?

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

### Is Spectrum free?

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

### Do RosetApp or Spectrum have ads?

Spectrum shows ads; RosetApp does not.

### Which is updated more often, RosetApp or Spectrum?

RosetApp ships an update monthly, and Spectrum every 8 days. Most recently, RosetApp was updated on October 12, 2026 and Spectrum on October 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*