# dB Guard vs NoiseLog

The clearest difference is in-app purchases: NoiseLog at none against dB Guard's 2. NoiseLog also leads on update cadence (every 3 weeks vs every 3 months). dB Guard's advantage is ads (none vs shown) and iOS requirement (15.1 vs 17.0). On price and device support there is nothing between them.

Both are free to download. dB Guard sells 2 in-app purchases, starting at $3.99 per 7 days. NoiseLog asks for nothing beyond the download.

dB Guard ships an update every 3 months, NoiseLog every 3 weeks. The most recent releases landed on September 10, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | dB Guard | NoiseLog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 48 MB | 4 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad haris Shahbaz](https://appshunter.io/developer/1806317467) | [Kai Hoeher](https://appshunter.io/developer/693968628) |

## What reviewers say

### dB Guard

[App page](https://appshunter.io/ios/app/db-guard/id6760651502)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| dB Guard Pro Weekly | $3.99 | per 7 days |
| dB Guard Pro Annual | $29.99 | per year |


### NoiseLog

[App page](https://appshunter.io/ios/app/noiselog-decibel-meter/id6766041381)

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

**In-app purchases:** none


## Frequently asked questions

### Is dB Guard free?

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

### Is NoiseLog free?

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

### Do dB Guard or NoiseLog have ads?

NoiseLog shows ads; dB Guard does not.

### Which is updated more often, dB Guard or NoiseLog?

dB Guard ships an update every 3 months, and NoiseLog every 3 weeks. Most recently, dB Guard was updated on September 10, 2026 and NoiseLog on September 15, 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.*