# Keyng vs Decibel Meter Sonolab

The clearest difference is price: Keyng at Free against Decibel Meter Sonolab's $3.99. Keyng also leads on device support (3 vs 1) and iOS requirement (15.0 vs 26.0). On ads and in-app purchases there is nothing between them.

Keyng is free to download; Decibel Meter Sonolab costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Keyng | Decibel Meter Sonolab |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 51 MB | 2 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Uhlmann & Zacher GmbH](https://appshunter.io/developer/1413776543) | [MIGUEL COZAIN](https://appshunter.io/developer/1651169095) |

## What reviewers say

### Keyng

[App page](https://appshunter.io/ios/app/keyng/id1450613501)

Manage electronic locking systems from your smartphone. Authorize transponder keys, invite users, and update firmware for Clex private systems. Ideal for small to medium-sized buildings.

**Highlights:** Bluetooth® Low Energy communication, Manage electronic locking cylinders and handles, Authorize and manage transponder keys, Invite users to open locks via smartphone, Update firmware and read event logs, NFC identification for keys

**Features:** macOS Compatibility

**In-app purchases:** none


### Decibel Meter Sonolab

[App page](https://appshunter.io/ios/app/decibel-meter-sonolab-db-spl/id6806353067)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Keyng free?

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

### Is Decibel Meter Sonolab free?

Decibel Meter Sonolab costs $3.99, with no in-app purchases.

### Do Keyng or Decibel Meter Sonolab have ads?

Neither Keyng nor Decibel Meter Sonolab 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.*