# SPL Meter vs AROMA AMP

The clearest difference is in-app purchases: AROMA AMP at none against SPL Meter's 2. AROMA AMP also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. SPL Meter sells 2 in-app purchases, starting at $1.99 per 7 days. AROMA AMP asks for nothing beyond the download.

SPL Meter ships an update every 5 weeks, AROMA AMP monthly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | SPL Meter | AROMA AMP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (11 ratings)](https://appshunter.io/ios/app/spl-meter-dbtracker/id6742470686/reviews)** | — |
| Number of ratings | **11** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 10 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [金红 李](https://appshunter.io/developer/1781133144) | [Aroma Music Co., Ltd.](https://appshunter.io/developer/1866759265) |

## What reviewers say

### SPL Meter

[App page](https://appshunter.io/ios/app/spl-meter-dbtracker/id6742470686)

This tool measures ambient noise levels in real-time, providing decibel readings to help you understand noise intensity and protect your hearing. It features an intuitive gauge, explanations of noise levels, and recording capabilities to track variations across locations and times.

**Highlights:** Real-time decibel measurement, Intuitive gauge display, Noise level explanations, Recording functionality, Track noise variations, Hearing protection guidance

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited access | $1.99 | per 7 days |
| Unlimited access | $9.99 | per year |


### AROMA AMP

[App page](https://appshunter.io/ios/app/aroma-amp/id6757411939)

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

**In-app purchases:** none


## Frequently asked questions

### Is SPL Meter free?

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

### Is AROMA AMP free?

AROMA AMP is free to download, with no in-app purchases.

### Do SPL Meter or AROMA AMP have ads?

Neither SPL Meter nor AROMA AMP shows ads.

### Which is updated more often, SPL Meter or AROMA AMP?

SPL Meter ships an update every 5 weeks, and AROMA AMP monthly. Most recently, SPL Meter was updated on October 30, 2026 and AROMA AMP on November 5, 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.*