# Toolbox vs Decibel Meter

The clearest difference is in-app purchases: Toolbox at none against Decibel Meter's 2. Decibel Meter's advantage is update cadence (every 6 weeks vs every 7 months) and iOS requirement (15.1 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Decibel Meter sells 2 in-app purchases, starting at $8.99 per 7 days. Toolbox asks for nothing beyond the download.

Toolbox ships an update every 7 months, Decibel Meter every 6 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Toolbox | Decibel Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/decibel-meter-db-sound-level/id6756241739/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 weeks** |
| Monetization | — | Freemium |
| Size | 3 MB | 47 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dominik Zabek](https://appshunter.io/developer/1577805931) | [ULADZISLAU ZINCHANKA](https://appshunter.io/developer/1808742027) |

## What reviewers say

### Toolbox

[App page](https://appshunter.io/ios/app/toolbox-metering-tools/id1637507301)

**In-app purchases:** none


### Decibel Meter

[App page](https://appshunter.io/ios/app/decibel-meter-db-sound-level/id6756241739)

Transform your iPhone into a professional sound level meter. Measure decibels with various weighting and time response settings, track noise exposure, and analyze frequencies. Generate detailed PDF reports for acoustic analysis and safety compliance.

**Highlights:** Professional-grade decibel measurement, Multiple frequency weightings (dBA, dBC, dBZ), NIOSH and OSHA compliance modes, Real-time monitoring with statistics, Frequency spectrum analysis, Noise exposure tracking (dosimeter), Audio recording with synchronized data

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $8.99 | per 7 days |
| Premium Yearly | $39.99 | per year |


## Frequently asked questions

### Is Toolbox free?

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

### Is Decibel Meter free?

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

### Do Toolbox or Decibel Meter have ads?

Neither Toolbox nor Decibel Meter shows ads.

### Which is updated more often, Toolbox or Decibel Meter?

Toolbox ships an update every 7 months, and Decibel Meter every 6 weeks. Most recently, Toolbox was updated on November 3, 2026 and Decibel Meter on October 30, 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.*