# MergeKey vs NuKey

The clearest difference is rating: MergeKey at 5.0 against NuKey's 4.5. MergeKey also leads on in-app purchases (none vs 4) and review sentiment (100% vs 70%). NuKey's advantage is update cadence (daily vs weekly) and ratings volume (40 vs 2). On price, ads and device support there is nothing between them.

Both are free to download. NuKey sells 4 one-off in-app purchases. MergeKey asks for nothing beyond the download.

MergeKey holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: NuKey has 40 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of MergeKey's written reviews are positive against 70% of NuKey's.

MergeKey ships an update weekly, NuKey daily. The most recent releases landed on October 4, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | MergeKey | NuKey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mergekey/id6478465716/reviews)** | [4.5 (40 ratings)](https://appshunter.io/ios/app/nukey/id6804797991/reviews) |
| Number of ratings | 2 | **40** |
| Positive reviews | **100.0% of reviews** | 70.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 64 MB | 33 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Andrei Achziger](https://appshunter.io/developer/1411891455) | [Sean Kelly](https://appshunter.io/developer/1615409978) |

## What reviewers say

### MergeKey

[App page](https://appshunter.io/ios/app/mergekey/id6478465716)

This keyboard dynamically adjusts key sizes and visibility as you type, offering larger tap targets and fewer errors. It supports 20 languages and includes customizable styles and privacy-focused features.

**Highlights:** Dynamic key resizing, Hides impossible keys, Supports 20 languages, Customizable styles, Privacy-focused, Typing game

**In-app purchases:** none


### NuKey

[App page](https://appshunter.io/ios/app/nukey/id6804797991)

Create a personalized typing experience with custom colors, key styles, and animated lighting. Choose from a variety of mechanical switch sounds to enhance your typing feel. Save and share your unique keyboard designs.

**Highlights:** Custom keyboard designs, Ready-made themes, Animated lighting effects, Mechanical switch sounds, Personalized key legends, Emoji browsing, Shareable designs via QR codes

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nice One | $1.99 | one-time |
| Very Kind | $4.99 | one-time |
| NuKey Pro | $8.99 | one-time |
| Legend | $9.99 | one-time |


## Frequently asked questions

### Is MergeKey free?

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

### Is NuKey free?

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

### Which has better reviews, MergeKey or NuKey?

MergeKey is rated higher. MergeKey averages 5.0 out of 5 from 2 ratings, while NuKey averages 4.5 from 40 ratings.

### Do MergeKey or NuKey have ads?

Neither MergeKey nor NuKey shows ads.

### Which is updated more often, MergeKey or NuKey?

MergeKey ships an update weekly, and NuKey daily. Most recently, MergeKey was updated on October 4, 2026 and NuKey on October 13, 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.*