# Xkey Plus vs 100 Button Calculator

The clearest difference is review sentiment: 100 Button Calculator at 100% against Xkey Plus's 36%. 100 Button Calculator also leads on rating (5.0 vs 2.9) and chart position (#190 vs unranked). Xkey Plus's advantage is price (Free vs $1.99) and ratings volume (13 vs 2). On ads and in-app purchases there is nothing between them.

Xkey Plus is free to download; 100 Button Calculator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

100 Button Calculator holds the better App Store score, 5.0 against 2.9. That said, the two scores are not equally well evidenced: Xkey Plus has 13 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 36% of Xkey Plus's written reviews are positive against 100% of 100 Button Calculator's.

## The numbers

| Metric | Xkey Plus | 100 Button Calculator |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [2.9 (13 ratings)](https://appshunter.io/ios/app/xkey-plus/id698087460/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/100-button-calculator/id6754612669/reviews)** |
| Number of ratings | **13** | 2 |
| Positive reviews | 35.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#190** |
| Size | 9 MB | 32 MB |
| Requires iOS | **9.3** | 15.6 |
| Devices | iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [ESI Audiotechnik GmbH](https://appshunter.io/developer/1627424644) | [Raymond Pirtle Jr.](https://appshunter.io/developer/1847562185) |

## What reviewers say

### Xkey Plus

[App page](https://appshunter.io/ios/app/xkey-plus/id698087460)

This app enhances the functionality of ESI Xkey musical keyboards on mobile devices. It allows users to update firmware, customize velocity curves, and configure key sensitivity and timings for an advanced user experience.

**Highlights:** Check for new Xkey firmware, Velocity curves editor, Configure Xkey sensitivity & timings, Access all Xkey parameters, Configure key & button assignments, Access Xkey documentation & support

**Features:** macOS Compatibility

**In-app purchases:** none


### 100 Button Calculator

[App page](https://appshunter.io/ios/app/100-button-calculator/id6754612669)

**Currently charting:** #190 Top Paid · Music (US App Store)

This app offers a unique calculator with an expanded 0-100 button range for faster data entry, reducing calculation time. It also includes a basic scratch sampler instrument for musicians.

**Highlights:** Expanded 0-100 button keypad, Up to 50% faster calculations, Keyboard and mouse operation, Basic scratch sampler instrument, Lite educational music version

**In-app purchases:** none


## Frequently asked questions

### Is Xkey Plus free?

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

### Is 100 Button Calculator free?

100 Button Calculator costs $1.99, with no in-app purchases.

### Which has better reviews, Xkey Plus or 100 Button Calculator?

100 Button Calculator is rated higher. Xkey Plus averages 2.9 out of 5 from 13 ratings, while 100 Button Calculator averages 5.0 from 2 ratings.

### Do Xkey Plus or 100 Button Calculator have ads?

Neither Xkey Plus nor 100 Button Calculator 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.*