# Decibel Meter A+ vs Lumen

The clearest difference is ads: Lumen at none against Decibel Meter A+'s shown. Decibel Meter A+'s advantage is iOS requirement (15.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Decibel Meter A+ sells 3 one-off in-app purchases and Lumen sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Decibel Meter A+ | Lumen |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 89.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 3 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [BO YOUNG PARK](https://appshunter.io/developer/1291813217) | [JI HOON LEE](https://appshunter.io/developer/484403986) |

## What reviewers say

### Decibel Meter A+

[App page](https://appshunter.io/ios/app/decibel-meter-a-plus/id6450104699)

This app measures and analyzes environmental noise in real time, providing accurate dB levels and statistical data. It features a simple interface for detecting subtle noises, with recording and sharing capabilities to manage noise data effectively and promote a safer environment.

**Highlights:** Real-time dB level monitoring, Environmental noise analysis, Noise measurement recording, Data sharing capabilities, Intuitive user interface, Statistical data generation

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Coffee for App Developers | $1.99 | one-time |
| Coffee + Cake for App Devs | $3.99 | one-time |


### Lumen

[App page](https://appshunter.io/ios/app/lumen-pro-camera/id6790338192)

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lumen Pro Monthly | $4.99 | per month |
| Lumen Pro Yearly | $19.99 | per year |
| Lumen Pro Lifetime | $34.99 | one-time |


## Frequently asked questions

### Is Decibel Meter A+ free?

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

### Is Lumen free?

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

### Do Decibel Meter A+ or Lumen have ads?

Decibel Meter A+ shows ads; Lumen does not.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*