# Fauna Mapper vs dB Decibel Meter

The clearest difference is in-app purchases: Fauna Mapper at none against dB Decibel Meter's 5. Fauna Mapper also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. dB Decibel Meter sells 5 in-app purchases, starting at $6.99 per 7 days. Fauna Mapper asks for nothing beyond the download.

Fauna Mapper ships an update every 2 weeks, dB Decibel Meter every 8 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Fauna Mapper | dB Decibel Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (115 ratings)](https://appshunter.io/ios/app/db-decibel-meter-noise-level/id6778630195/reviews)** |
| Number of ratings | — | **115** |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Monetization | — | Free with in-app purchases |
| Size | 69 MB | 72 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Mach2](https://appshunter.io/developer/1581604407) | [Shenzhen Yiken Technology Co., Ltd](https://appshunter.io/developer/1763774410) |

## What reviewers say

### Fauna Mapper

[App page](https://appshunter.io/ios/app/fauna-mapper/id6759609621)

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

**In-app purchases:** none


### dB Decibel Meter

[App page](https://appshunter.io/ios/app/db-decibel-meter-noise-level/id6778630195)

Measure real-time sound levels with this tool, offering A-weighting and frequency analysis. Record audio, take photos, and capture videos with embedded decibel data for evidence and safety checks. Includes a reference guide for understanding noise ranges.

**Highlights:** Real-time SPL measurement, A-weighting and frequency weighting, Audio recording with decibel data, Photo and video capture with noise marks, Noise level scale and reference guide, Export records in MP3, PDF, CSV

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $6.99 | per 7 days |
| Weekly Subscription | $9.99 | per 7 days |
| Monthly Subscription | $19.99 | per month |
| Yearly Subscription | $59.99 | per year |
| Lifetime Member | $99.99 | one-time |


## Frequently asked questions

### Is Fauna Mapper free?

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

### Is dB Decibel Meter free?

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

### Do Fauna Mapper or dB Decibel Meter have ads?

dB Decibel Meter shows ads; Fauna Mapper does not.

### Which is updated more often, Fauna Mapper or dB Decibel Meter?

Fauna Mapper ships an update every 2 weeks, and dB Decibel Meter every 8 days. Most recently, Fauna Mapper was updated on October 28, 2026 and dB Decibel Meter 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.*