# dB vs B

The clearest difference is iOS requirement: B at 13.0 against dB's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | dB | B |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | Every 5 months |
| Monetization | Free | — |
| Size | 6 MB | 95 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kurenz Music GbR](https://appshunter.io/developer/544695186) | [Shanghai Hon Cho International Trade Co., Ltd.](https://appshunter.io/developer/1232497891) |

## What reviewers say

### dB

[App page](https://appshunter.io/ios/app/db-meter/id635309215)

This application measures sound pressure levels in decibels using a retro-style design. It displays both average and peak levels in real-time, with digital readouts alongside analog meters.

**Highlights:** Measures sound pressure in decibels (dB), Retro-style analog display, Real-time average and peak level readings, Digital value readout, High-frequency sampling (44.1 kHz)

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

**In-app purchases:** none


### B

[App page](https://appshunter.io/ios/app/b-one/id1491640533)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is dB free?

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

### Is B free?

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

### Do dB or B have ads?

Neither dB nor B shows ads.

### Which is updated more often, dB or B?

dB ships an update every 5 months, and B every 5 months. Most recently, dB was updated on October 23, 2026 and B 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.*