# itc vmc vs Decibel Meter

The clearest difference is in-app purchases: itc vmc at none against Decibel Meter's 1. itc vmc also leads on update cadence (fortnightly vs every 5 weeks) and iOS requirement (12 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Decibel Meter sells 1 one-off in-app purchase. itc vmc asks for nothing beyond the download.

itc vmc ships an update fortnightly, Decibel Meter every 5 weeks. The most recent releases landed on September 9, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | itc vmc | Decibel Meter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Size | 55 MB | 3 MB |
| Requires iOS | **12** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [广东保伦电子股份有限公司](https://appshunter.io/developer/933187149) | [博 彭](https://appshunter.io/developer/1293268076) |

## What reviewers say

### itc vmc

[App page](https://appshunter.io/ios/app/itc-vmc/id6739823463)

**In-app purchases:** none


### Decibel Meter

[App page](https://appshunter.io/ios/app/decibel-meter-noisescope/id6760281155)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro永久版 | $1.99 | one-time |


## Frequently asked questions

### Is itc vmc free?

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

### Is Decibel Meter free?

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

### Do itc vmc or Decibel Meter have ads?

Neither itc vmc nor Decibel Meter shows ads.

### Which is updated more often, itc vmc or Decibel Meter?

itc vmc ships an update fortnightly, and Decibel Meter every 5 weeks. Most recently, itc vmc was updated on September 9, 2026 and Decibel Meter on September 8, 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.*