# Decibel vs ASSETScope

The clearest difference is in-app purchases: ASSETScope at none against Decibel's 10. Decibel's advantage is iOS requirement (13.1 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Decibel sells 10 in-app purchases, starting at $1.99 per 7 days. ASSETScope asks for nothing beyond the download.

Decibel ships an update monthly, ASSETScope fortnightly. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Decibel | ASSETScope |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (321 ratings)](https://appshunter.io/ios/app/decibel-db-noise-level-meter/id6464403884/reviews)** | — |
| Number of ratings | **321** | — |
| Positive reviews | 81.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 80 MB | 46 MB |
| Requires iOS | **13.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [EYWIN BILGI TEKNOLOJILERI ANONIM SIRKETI](https://appshunter.io/developer/1492105189) | [Ainigma Technologies](https://appshunter.io/developer/1784413516) |

## What reviewers say

### Decibel

[App page](https://appshunter.io/ios/app/decibel-db-noise-level-meter/id6464403884)

Measure, analyze, and protect your hearing with this comprehensive sound level meter. It offers real-time decibel readings, noise exposure monitoring, and tools for audio exploration like frequency generation and speaker cleaning.

**Highlights:** Real-time sound level measurement (dB), Noise exposure monitoring (Dosimeter), Interactive recording and visualization, Frequency generator, Speaker cleaner, Frequency hearing test

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Grooz DB Meter Weekly | $1.99 | per 7 days |
| Weekly Decibel Meter | $2.99 | per 7 days |
| weekly premium | $3.99 | per 7 days |
| Weekly PRO Decibel | $4.99 | per 7 days |
| Monthly Premium | $6.99 | per month |
| Unlimited Weekly PRO | $7.99 | per 7 days |
| Monthly Decibel Sonic PRO | $12.99 | per month |
| Annual Decibel Meter | $29.99 | per year |
| Yearly Premium | $39.99 | per year |
| Yearly Decibel Sonic PRO | $44.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 📏 Accurate decibel meter
- 🔊 High sound level detection
- 👂 Healthy for ear
- 🏠 Useful for home noise levels

**What reviewers complain about**

- 🔋 High battery usage
- 💸 Difficult to cancel subscription
- 💳 Hidden charges after trial
- ⚠️ Dodgy subscription practices

**Reported bugs**

- Background activity drains battery
- Subscription cancellation not obvious

**Requested features**

- Clear cancellation instructions


### ASSETScope

[App page](https://appshunter.io/ios/app/assetscope/id6764006323)

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

**In-app purchases:** none


## Frequently asked questions

### Is Decibel free?

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

### Is ASSETScope free?

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

### Do Decibel or ASSETScope have ads?

Neither Decibel nor ASSETScope shows ads.

### Which is updated more often, Decibel or ASSETScope?

Decibel ships an update monthly, and ASSETScope fortnightly. Most recently, Decibel was updated on November 7, 2026 and ASSETScope on October 31, 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.*