# FNV Decibelmeter vs NL

The clearest difference is ads: FNV Decibelmeter at none against NL's shown. FNV Decibelmeter also leads on iOS requirement (8.0 vs 17.6). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

FNV Decibelmeter ships an update every 8 months, NL every 5 months. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | FNV Decibelmeter | NL |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Every 5 months** |
| Monetization | Free | — |
| Size | 9 MB | 74 MB |
| Requires iOS | **8.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [FNV](https://appshunter.io/developer/591038241) | [Politie](https://appshunter.io/developer/1812846463) |

## What reviewers say

### FNV Decibelmeter

[App page](https://appshunter.io/ios/app/fnv-decibelmeter/id591038238)

Measure workplace noise exposure and receive immediate advice on safety. Understand your risk of hearing damage and your rights to hearing protection based on noise levels and duration.

**Highlights:** Measure workplace noise levels, Receive safety advice, Identify hearing protection rights, Understand noise risk factors, Promote workplace safety awareness

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

**In-app purchases:** none


### NL

[App page](https://appshunter.io/ios/app/nl-alert/id6443585319)

**In-app purchases:** none


## Frequently asked questions

### Is FNV Decibelmeter free?

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

### Is NL free?

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

### Do FNV Decibelmeter or NL have ads?

NL shows ads; FNV Decibelmeter does not.

### Which is updated more often, FNV Decibelmeter or NL?

FNV Decibelmeter ships an update every 8 months, and NL every 5 months. Most recently, FNV Decibelmeter was updated on November 1, 2026 and NL on October 25, 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.*