# Decibel Meter vs OnlyAuth

Decibel Meter and OnlyAuth are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | Decibel Meter | OnlyAuth |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | — |
| Size | 1 MB | 1 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [庆贤 曾](https://appshunter.io/developer/1767739447) | [秦毓 常](https://appshunter.io/developer/1879677188) |

## What reviewers say

### Decibel Meter

[App page](https://appshunter.io/ios/app/decibel-meter-expert-accuracy/id6680196104)

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

**In-app purchases:** none


### OnlyAuth

[App page](https://appshunter.io/ios/app/onlyauth/id6760888113)

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

**In-app purchases:** none


## Frequently asked questions

### Is Decibel Meter free?

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

### Is OnlyAuth free?

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

### Do Decibel Meter or OnlyAuth have ads?

Neither Decibel Meter nor OnlyAuth 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.*