# Perspective Box vs Decibel Meter Detector

The clearest difference is price: Perspective Box at Free against Decibel Meter Detector's $0.99. Perspective Box also leads on iOS requirement (10.0 vs 16.6). Decibel Meter Detector's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 6 months). On in-app purchases and device support there is nothing between them.

Perspective Box is free to download; Decibel Meter Detector costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Perspective Box ships an update every 6 months, Decibel Meter Detector every 3 weeks. The most recent releases landed on October 12, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Perspective Box | Decibel Meter Detector |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | — | Paid |
| Size | 81 MB | 9 MB |
| Requires iOS | **10.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YANG-SIOU LIN](https://appshunter.io/developer/1473152715) | [泽韦 陈](https://appshunter.io/developer/1787282599) |

## What reviewers say

### Perspective Box

[App page](https://appshunter.io/ios/app/perspective-box/id1528307727)

**Features:** macOS Compatibility

**In-app purchases:** none


### Decibel Meter Detector

[App page](https://appshunter.io/ios/app/decibel-meter-detector/id1576052678)

Measure ambient noise levels and understand sound trends with real-time readings, charts, and detailed statistics. This tool helps identify loud events, save recordings, and export data for analysis. It offers customizable alerts and privacy options for everyday reference.

**Highlights:** Real-time sound readings, Average, Leq, and Lmax measurements, Live sound-level charts, Automatic peak-event detection, Save recordings or decibel data, Custom alert thresholds, Export CSV, images, and PDF reports

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Perspective Box free?

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

### Is Decibel Meter Detector free?

Decibel Meter Detector costs $0.99, with no in-app purchases.

### Do Perspective Box or Decibel Meter Detector have ads?

Perspective Box shows ads; Decibel Meter Detector does not.

### Which is updated more often, Perspective Box or Decibel Meter Detector?

Perspective Box ships an update every 6 months, and Decibel Meter Detector every 3 weeks. Most recently, Perspective Box was updated on October 12, 2026 and Decibel Meter Detector on October 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.*