# LineConstants vs dB Meter

The clearest difference is in-app purchases: dB Meter at none against LineConstants's 2. dB Meter also leads on iOS requirement (13.0 vs 18.0). LineConstants's advantage is device support. On price there is nothing between them.

Both are free to download. LineConstants sells 2 in-app purchases, starting at $9.99 per month. dB Meter asks for nothing beyond the download.

## The numbers

| Metric | LineConstants | dB Meter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 2 months | — |
| Size | 33 MB | 30 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [Sergey Gussev](https://appshunter.io/developer/1784439395) | [RAMAZAN USEN](https://appshunter.io/developer/1783434185) |

## What reviewers say

### LineConstants

[App page](https://appshunter.io/ios/app/lineconstants/id6740081204)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Yearly | $19.99 | per year |


### dB Meter

[App page](https://appshunter.io/ios/app/db-meter-sound-level/id6760949256)

**In-app purchases:** none


## Frequently asked questions

### Is LineConstants free?

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

### Is dB Meter free?

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

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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.*