# Sound Level & Spectrogram vs AI MindClip

The clearest difference is in-app purchases: Sound Level & Spectrogram at none against AI MindClip's 4. AI MindClip's advantage is ads (none vs shown) and update cadence (every 10 days vs every 5 months). On price there is nothing between them.

Both are free to download. AI MindClip sells 4 in-app purchases, starting at $15.99 per month. Sound Level & Spectrogram asks for nothing beyond the download.

Sound Level & Spectrogram ships an update every 5 months, AI MindClip every 10 days. The most recent releases landed on September 18, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Sound Level & Spectrogram | AI MindClip |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 10 days** |
| Monetization | Ad-supported | — |
| Size | 4 MB | 287 MB |
| Requires iOS | 18.7 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TOON,LLC](https://appshunter.io/developer/633948723) | [wonderlabs, Incorporated](https://appshunter.io/developer/1087374759) |

## What reviewers say

### 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


### AI MindClip

[App page](https://appshunter.io/ios/app/ai-mindclip/id6760324554)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $15.99 | per month |
| Pro | $69.99 | per 6 months |
| Pro | $99.99 | per year |
| Unlimited | $239.99 | per year |


## Frequently asked questions

### Is Sound Level & Spectrogram free?

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

### Is AI MindClip free?

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

### Do Sound Level & Spectrogram or AI MindClip have ads?

Sound Level & Spectrogram shows ads; AI MindClip does not.

### Which is updated more often, Sound Level & Spectrogram or AI MindClip?

Sound Level & Spectrogram ships an update every 5 months, and AI MindClip every 10 days. Most recently, Sound Level & Spectrogram was updated on September 18, 2026 and AI MindClip on September 24, 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.*