# HVAC POSITIONER vs Decibels Meter

The clearest difference is update cadence: Decibels Meter at every 9 days against HVAC POSITIONER's every 42 months. Decibels Meter also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

HVAC POSITIONER ships an update every 42 months, Decibels Meter every 9 days. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | HVAC POSITIONER | Decibels Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/decibels-meter/id6755508693/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 9 days** |
| Size | 531 MB | 27 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AIT Austrian Institute of Technology GmbH](https://appshunter.io/developer/1019191844) | [剑 罗](https://appshunter.io/developer/1854272181) |

## What reviewers say

### HVAC POSITIONER

[App page](https://appshunter.io/ios/app/hvac-positioner/id1462057877)

**Features:** macOS Compatibility

**In-app purchases:** none


### Decibels Meter

[App page](https://appshunter.io/ios/app/decibels-meter/id6755508693)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HVAC POSITIONER free?

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

### Is Decibels Meter free?

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

### Do HVAC POSITIONER or Decibels Meter have ads?

Neither HVAC POSITIONER nor Decibels Meter shows ads.

### Which is updated more often, HVAC POSITIONER or Decibels Meter?

HVAC POSITIONER ships an update every 42 months, and Decibels Meter every 9 days. Most recently, HVAC POSITIONER was updated on October 15, 2026 and Decibels Meter on October 24, 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.*