# ozzio cloud（オッジオクラウド） vs Sound Level & Spectrogram

The clearest difference is review sentiment: Sound Level & Spectrogram at 100% against ozzio cloud（オッジオクラウド）'s 25%. ozzio cloud（オッジオクラウド）'s advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ozzio cloud（オッジオクラウド） ships an update every 3 months, Sound Level & Spectrogram every 5 months. Both last shipped on October 6, 2026.

## The numbers

| Metric | ozzio cloud（オッジオクラウド） | Sound Level & Spectrogram |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | **Free** | Ad-supported |
| Size | 6 MB | 4 MB |
| Requires iOS | **9.1** | 18.7 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [OPTiM Corporation](https://appshunter.io/developer/484555009) | [TOON,LLC](https://appshunter.io/developer/633948723) |

## What reviewers say

### ozzio cloud（オッジオクラウド）

[App page](https://appshunter.io/ios/app/ozzio-cloud/id723451212)

Securely back up and access your documents, photos, music, and videos from any device. Restore not only data but also system settings for easy recovery after hardware failure. Offers automatic camera roll synchronization.

**Highlights:** Automatic data backup, Access from any device, System settings backup and restore, Camera sync for photos and videos, Web browser and client access

**Features:** macOS Compatibility

**In-app purchases:** none


### Sound Level & Spectrogram

[App page](https://appshunter.io/ios/app/sound-level-and-spectrogram/id6503722682)

Measure sound levels in decibels and visualize sound frequencies with a real-time spectrogram. Understand your environment's noise and protect your health. Offers advanced settings for accurate acoustic analysis.

**Highlights:** Sound level measurement (dB), Real-time spectrogram analysis, Frequency weighting correction (A, C, Z), Time weighting characteristics (Fast, Slow), Time course graph, Environmental noise measurement

**In-app purchases:** none


## Frequently asked questions

### Is ozzio cloud（オッジオクラウド） free?

ozzio cloud（オッジオクラウド） is free to download, with no in-app purchases.

### Is Sound Level & Spectrogram free?

Sound Level & Spectrogram is free to download, with no in-app purchases.

### Do ozzio cloud（オッジオクラウド） or Sound Level & Spectrogram have ads?

Sound Level & Spectrogram shows ads; ozzio cloud（オッジオクラウド） does not.

### Which is updated more often, ozzio cloud（オッジオクラウド） or Sound Level & Spectrogram?

ozzio cloud（オッジオクラウド） ships an update every 3 months, and Sound Level & Spectrogram every 5 months. Most recently, ozzio cloud（オッジオクラウド） was updated on October 6, 2026 and Sound Level & Spectrogram on October 6, 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.*