# Turtle vs dB Decibel

The clearest difference is in-app purchases: Turtle at none against dB Decibel's 1. Turtle also leads on ads (none vs shown) and device support (4 vs 1). dB Decibel's advantage is update cadence (every 4 days vs monthly). On price there is nothing between them.

Both are free to download. dB Decibel sells 1 one-off in-app purchase. Turtle asks for nothing beyond the download.

Turtle ships an update monthly, dB Decibel every 4 days. The most recent releases landed on October 9, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Turtle | dB Decibel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/db-decibel-sound-level-meter/id6777625723/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 4 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mike Hollingshead](https://appshunter.io/developer/887114065) | [Levin David Schwab](https://appshunter.io/developer/1896432297) |

## What reviewers say

### Turtle

[App page](https://appshunter.io/ios/app/turtle/id887114136)

**In-app purchases:** none


### dB Decibel

[App page](https://appshunter.io/ios/app/db-decibel-sound-level-meter/id6777625723)

This application measures ambient noise levels in decibels in real-time, providing honest readings by indicating when sounds are too low or too loud for the microphone. It offers various professional metrics and features for detailed sound analysis, with an option for advanced tools via a one-time purchase.

**Highlights:** Real-time dB(A) sound level measurement, Peak hold and honest readings (clipping/near-silence detection), Professional metrics (Leq, L10, L90), Safe-listening time estimate, Dominant frequency and live graph, Evidence Mode for noise-event logging, Live Sound ID for noise identification

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Decibel Pro | $4.99 | one-time |


## Frequently asked questions

### Is Turtle free?

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

### Is dB Decibel free?

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

### Do Turtle or dB Decibel have ads?

dB Decibel shows ads; Turtle does not.

### Which is updated more often, Turtle or dB Decibel?

Turtle ships an update monthly, and dB Decibel every 4 days. Most recently, Turtle was updated on October 9, 2026 and dB Decibel on September 29, 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.*