# SPL Meter vs MusicMath

The clearest difference is price: SPL Meter at $0.99 against MusicMath's $9.99. MusicMath's advantage is in-app purchases (none vs 1) and rating (4.3 vs 4.1). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

SPL Meter costs $0.99 and MusicMath $9.99 up front. SPL Meter sells 1 one-off in-app purchase. MusicMath asks for nothing beyond the download.

MusicMath holds the better App Store score, 4.3 against 4.1. Both are backed by a comparable volume of ratings — 28 and 12 respectively. Written reviews split almost evenly too, at 73% and 73% positive.

SPL Meter ships an update every 4 months, MusicMath every 7 months. The most recent releases landed on September 22, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | SPL Meter | MusicMath |
| --- | --- | --- |
| Price | **$0.99** | $9.99 |
| Rating | [4.1 (28 ratings)](https://appshunter.io/ios/app/spl-meter/id309206756/reviews) | **[4.3 (12 ratings)](https://appshunter.io/ios/app/musicmath/id381525762/reviews)** |
| Number of ratings | **28** | 12 |
| Positive reviews | 72.9% of reviews | **73.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 7 months |
| Monetization | Paid | Paid |
| Size | 36 MB | 12 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Smith](https://appshunter.io/developer/291822462) | [Laurent Colson](https://appshunter.io/developer/381525765) |

## What reviewers say

### SPL Meter

[App page](https://appshunter.io/ios/app/spl-meter/id309206756)

This application functions as a professional-grade sound level meter, measuring decibels (dB) with advanced DSP algorithms. It offers adjustable filters, decay rates, and ranges, and can be calibrated for accuracy. It supports both internal and external microphones for versatile sound measurement.

**Highlights:** A and C weighting filters, ANSI Fast or Slow decay, 40dB to 120dB ranges, Adjustable calibration, Internal/External mic support, Universal app

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Controls & Ad-Free | $0.99 | one-time |

**What reviewers like**

- ✅ Accurate sound level measurements when calibrated
- 💰 Excellent value at $0.99 price point
- 📱 Works across multiple Apple devices (iPhone, iPad, iPod)
- 🎯 Simple and intuitive user interface
- 🔧 Analog meter design looks professional and authentic

**What reviewers complain about**

- 🐛 Inconsistent and unstable meter readings
- 💳 Pricing discrepancies (advertised as $0.99 but charged $6.99)
- 📐 UI scaling issues on various screen sizes and orientations
- 🔍 Text and meter display too small to read easily
- 🖼️ Outdated retro interface design

**Reported bugs**

- Meter readings change completely and are not stable
- App crashes on iPhone 6s Plus with jumbled screen display
- Screen scaling issues on iPad models
- Display glitches when rotating device between portrait and landscape
- Greyed out settings after installation

**Requested features**

- Larger meter display in landscape mode
- Digital-only display option without analog meter face
- Peak hold and min/max reading indicators
- Time-based decibel graph visualization
- Linear response visual option in addition to logarithmic


### MusicMath

[App page](https://appshunter.io/ios/app/musicmath/id381525762)

This musical tool offers a comprehensive suite of calculators for audio professionals and musicians. It includes converters for timecode, tempo, note frequencies, and sample lengths, alongside a tap tempo metronome and detailed note-to-frequency tables with customizable temperaments.

**Highlights:** Timecode calculator with frame format management, Tap tempo with metronome, Tempo to delay (milliseconds/hertz) converter, Note to frequency converter with temperaments, Sample length converter, Frequency to note converter

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SPL Meter free?

SPL Meter costs $0.99, and also offers in-app purchases.

### Is MusicMath free?

MusicMath costs $9.99, with no in-app purchases.

### Which has better reviews, SPL Meter or MusicMath?

MusicMath is rated higher. SPL Meter averages 4.1 out of 5 from 28 ratings, while MusicMath averages 4.3 from 12 ratings.

### Do SPL Meter or MusicMath have ads?

Neither SPL Meter nor MusicMath shows ads.

### Which is updated more often, SPL Meter or MusicMath?

SPL Meter ships an update every 4 months, and MusicMath every 7 months. Most recently, SPL Meter was updated on September 22, 2026 and MusicMath on September 19, 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.*