# MCalc vs SPL Meter

The clearest difference is in-app purchases: MCalc at none against SPL Meter's 2. MCalc also leads on iOS requirement (13.0 vs 15.0). On price, 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. MCalc asks for nothing beyond the download.

## The numbers

| Metric | MCalc | SPL Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (11 ratings)](https://appshunter.io/ios/app/spl-meter-dbtracker/id6742470686/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 9 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Marcin Kessler](https://appshunter.io/developer/1513581304) | [金红 李](https://appshunter.io/developer/1781133144) |

## What reviewers say

### MCalc

[App page](https://appshunter.io/ios/app/mcalc/id1528415072)

A simple, expandable calculator with numerous advanced features. It supports 28 operators, 84 functions including trigonometric and scientific ones, and allows users to create custom JavaScript functions. The app offers instant calculation, error highlighting, and a history of previous calculations.

**Highlights:** 28 operators including bitwise, 84 scientific and trigonometric functions, Custom JavaScript function creation, Instant calculation with error highlighting, Unlimited memory slots, Calculation history, 3 customizable themes

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is MCalc free?

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

### Is SPL Meter free?

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

### Do MCalc or SPL Meter have ads?

Neither MCalc nor SPL Meter shows ads.

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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.*