# Desktop Calculator vs Key Mapper

The clearest difference is rating: Desktop Calculator at 4.8 against Key Mapper's 4.2. Desktop Calculator also leads on ads (none vs shown) and ratings volume (202 vs 5). Key Mapper's advantage is in-app purchases (none vs 1) and iOS requirement (15.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. Desktop Calculator sells 1 one-off in-app purchase. Key Mapper asks for nothing beyond the download.

Desktop Calculator holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Desktop Calculator has 202 ratings behind it against 5, so its average is the more settled of the two.

## The numbers

| Metric | Desktop Calculator | Key Mapper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (202 ratings)](https://appshunter.io/ios/app/desktop-calculator-real-voice/id6450638014/reviews)** | [4.2 (5 ratings)](https://appshunter.io/ios/app/key-mapper/id6816169573/reviews) |
| Number of ratings | **202** | 5 |
| Positive reviews | 74.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | — |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 25 MB | 29 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [6X Studio LLC](https://appshunter.io/developer/888749139) | [OLIVER MORRIS](https://appshunter.io/developer/6771799098) |

## What reviewers say

### Desktop Calculator

[App page](https://appshunter.io/ios/app/desktop-calculator-real-voice/id6450638014)

Perform calculations directly from your home screen with interactive widgets. Customize themes, fonts, and even add unique sound effects for a personalized experience. Access quick calculations via Control Center and Lock Screen widgets.

**Highlights:** Home Screen Interactive Widgets, Real Voice Pronunciation (Male/Female), Display Calculation Formulas, Over 40 UI Themes, Custom Sound Effects, Customizable Fonts and Layouts, Lock Screen Widget

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Plan | $1.99 | one-time |


### Key Mapper

[App page](https://appshunter.io/ios/app/key-mapper/id6816169573)

This utility app allows you to assign custom actions to double-pressing your device's volume buttons. You can toggle the flashlight, copy text, hear the time, or open web links. It also integrates with iPhone's Back Tap and home screen shortcuts.

**Highlights:** Assign actions to volume button double-presses, Toggle flashlight, Copy text snippets, Speak time and battery status, Launch web links, Integrates with iPhone Back Tap, Supports home screen shortcuts

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

**In-app purchases:** none


## Frequently asked questions

### Is Desktop Calculator free?

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

### Is Key Mapper free?

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

### Which has better reviews, Desktop Calculator or Key Mapper?

Desktop Calculator is rated higher. Desktop Calculator averages 4.8 out of 5 from 202 ratings, while Key Mapper averages 4.2 from 5 ratings.

### Do Desktop Calculator or Key Mapper have ads?

Key Mapper shows ads; Desktop Calculator does not.

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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.*