# KSU BIT Mobile vs dB Noise Meter

The clearest difference is in-app purchases: KSU BIT Mobile at none against dB Noise Meter's 5. KSU BIT Mobile also leads on ads (none vs shown) and iOS requirement (13.4 vs 16.6). On price, update cadence and device support there is nothing between them.

Both are free to download. dB Noise Meter sells 5 in-app purchases, starting at $6.99 per 7 days. KSU BIT Mobile asks for nothing beyond the download.

KSU BIT Mobile ships an update every 4 months, dB Noise Meter every 2 months. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | KSU BIT Mobile | dB Noise Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.8 (123 ratings)](https://appshunter.io/ios/app/db-noise-meter/id1590850487/reviews)** |
| Number of ratings | — | **123** |
| Positive reviews | — | 15.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 25 MB | 49 MB |
| Requires iOS | **13.4** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [CABEM Technologies, LLC](https://appshunter.io/developer/1387516197) | [Petr Polasek](https://appshunter.io/developer/1613323784) |

## What reviewers say

### KSU BIT Mobile

[App page](https://appshunter.io/ios/app/ksu-bit-mobile/id1387516198)

**In-app purchases:** none


### dB Noise Meter

[App page](https://appshunter.io/ios/app/db-noise-meter/id1590850487)

Measure ambient noise levels in decibels (dB) using your phone's microphone. Track real-time noise, identify loud appliances, and monitor your exposure to potentially harmful sound levels.

**Highlights:** Real-time decibel measurement, Noise level tracking, Appliance noise testing, Save noise measurements, Display min/max/avg dB

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 week | $6.99 | per 7 days |
| Premium 1 Month | $9.99 | per month |
| Premium 3 Months | $17.99 | per 3 months |
| Premium 6 Months | $19.99 | per 6 months |
| Premium 1 Year | $29.99 | per year |


## Frequently asked questions

### Is KSU BIT Mobile free?

KSU BIT Mobile is free to download, with no in-app purchases.

### Is dB Noise Meter free?

dB Noise Meter is free to download, with in-app purchases available.

### Do KSU BIT Mobile or dB Noise Meter have ads?

dB Noise Meter shows ads; KSU BIT Mobile does not.

### Which is updated more often, KSU BIT Mobile or dB Noise Meter?

KSU BIT Mobile ships an update every 4 months, and dB Noise Meter every 2 months. Most recently, KSU BIT Mobile was updated on October 29, 2026 and dB Noise Meter on October 30, 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.*