# HE.DU vs Simple dB Meter

The clearest difference is price: HE.DU at Free against Simple dB Meter's $0.99. HE.DU also leads on iOS requirement (16.0 vs 18.5). On ads, in-app purchases and device support there is nothing between them.

HE.DU is free to download; Simple dB Meter costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | HE.DU | Simple dB Meter |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 251 MB | 1 MB |
| Requires iOS | **16.0** | 18.5 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Österreichisches Rotes Kreuz, Landesverband Niederösterreich](https://appshunter.io/developer/1114795402) | [Daniel Kofler](https://appshunter.io/developer/1728602734) |

## What reviewers say

### HE.DU

[App page](https://appshunter.io/ios/app/hedu/id1114795403)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Simple dB Meter

[App page](https://appshunter.io/ios/app/simple-db-meter/id6748885911)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HE.DU free?

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

### Is Simple dB Meter free?

Simple dB Meter costs $0.99, with no in-app purchases.

### Do HE.DU or Simple dB Meter have ads?

Neither HE.DU nor Simple dB Meter shows ads.

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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.*