# Decibel meter test vs BatTrack BT +

The clearest difference is in-app purchases: BatTrack BT + at none against Decibel meter test's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Decibel meter test sells 1 in-app purchase, starting at $6.99 per 7 days. BatTrack BT + asks for nothing beyond the download.

Decibel meter test ships an update every 4 weeks, BatTrack BT + monthly. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Decibel meter test | BatTrack BT + |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/decibel-meter-test/id6742873854/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Monthly |
| Monetization | Freemium | **Free** |
| Size | 37 MB | 37 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [玉珍 李](https://appshunter.io/developer/1547803211) | [Electrifuel Private Limited](https://appshunter.io/developer/1829404794) |

## What reviewers say

### Decibel meter test

[App page](https://appshunter.io/ios/app/decibel-meter-test/id6742873854)

This tool measures environmental noise levels in real-time, records test history, and helps manage noisy surroundings. It offers precise decibel readings and scene capture for analysis.

**Highlights:** Real-time decibel testing, Surrounding noise detection, Scene capture with noise levels, Automatic test record saving, Historical measurement analysis, Simple and easy to use

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One week membership | $6.99 | per 7 days |


### BatTrack BT +

[App page](https://appshunter.io/ios/app/battrack-bt-plus/id6749360218)

Connect to Battery Management Systems via Bluetooth to monitor battery health and performance in real-time. Gain detailed insights into device parameters through a simple, user-friendly interface.

**Highlights:** Bluetooth BMS connection, Real-time battery monitoring, Health and performance metrics, Detailed device insights, User-friendly interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Decibel meter test free?

Decibel meter test is free to download, with in-app purchases available.

### Is BatTrack BT + free?

BatTrack BT + is free to download, with no in-app purchases.

### Do Decibel meter test or BatTrack BT + have ads?

Neither Decibel meter test nor BatTrack BT + shows ads.

### Which is updated more often, Decibel meter test or BatTrack BT +?

Decibel meter test ships an update every 4 weeks, and BatTrack BT + monthly. Most recently, Decibel meter test was updated on September 29, 2026 and BatTrack BT + on October 7, 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.*