# MergeKey — Dynamic Keyboard

> Dynamic keyboard that shrinks impossible keys and expands remaining ones for easier typing. (iPhone/iPad app by Andrei Achziger.)

- Source: https://appshunter.io/ios/app/mergekey/id6478465716 (this page in markdown: same URL + `.md`)
- Developer: [Andrei Achziger](https://appshunter.io/developer/1411891455)
- Category: Utilities, Education
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 18.0 · 42 MB
- Languages: Danish, Dutch, English, Finnish, French, German, Greek, Hungarian, Indonesian, Italian and 10 more
- Released: 2024-08-13
- Data updated: 2026-08-21
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/mergekey/id6478465716/reviews.md

## What is MergeKey?

MergeKey — the first keyboard that hides the keys you don't need.

As you type, MergeKey dynamically removes impossible letters and expands the remaining keys, giving you bigger tap targets and fewer typos. It's like autocomplete, but visual — you see your options shrink in real time.

MERGE MODE — UNIQUE TO MERGEKEY
- Keys that can't continue your word disappear instantly
- Remaining keys grow to fill the space — bigger keys, fewer mistakes
- Learns new words you teach it
- Toggle Merge Mode off if you prefer just the disappearing keys without resizing

20 LANGUAGES
English, German, French, Spanish, Italian, Portuguese, Dutch, Polish, Greek, Turkish, Russian, Ukrainian, Indonesian, Vietnamese, Swedish, Finnish, Danish, Norwegian, Romanian and Hungarian — each with native prediction and accented character variants. English (US/GB) and Portuguese (BR/PT) with correct regional dictionaries.

SMART FEATURES
- Prediction bar with word suggestions
- Long-press for accented letters and symbols
- Character preview bubble on key tap
- Optional dedicated number row
- Double-tap shift for caps lock
- Backspace hold-to-accelerate (characters, then words)

CUSTOMIZABLE STYLE
- 4 keyboard styles: iOS 26 Liquid Glass, Classic, Flat, Flat Glass
- Custom key fill and border colors
- Transparency slider for key fill opacity
- Spacebar icon options
- Animation speed control

BUILT FOR LEARNERS
- Swipe up to teach MergeKey a new word
- Swipe down for continuous mode (all keys visible)
- Swipe left to delete whole words
- Swipe right to repeat the last word
- Built-in typing game to practice in any language

PRIVACY FIRST
MergeKey does not collect or transmit your typing data. Everything stays on your device.

## Key features

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

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/mergekey/id6478465716/reviews.md

### 5/5 — Amazing!

*2026-01-15*

I've never found something like this before and love it!! I'm using it right now!

**Developer response:** Thank you so much—we truly appreciate your glowing review! It's fantastic to know MergeKey is something unique for you and that you're loving it enough to use it right away. If you have any suggestions to improve it further, we're all ears! 😊

## Frequently asked questions about MergeKey

### What is MergeKey's Merge Mode?

Merge Mode is a unique feature where keys that cannot continue your current word disappear instantly. The remaining keys then expand to fill the space, providing larger tap targets and reducing typos. You can toggle this resizing feature off if you only want the disappearing keys.

### How many languages does MergeKey support?

MergeKey supports 20 languages, including English, German, French, Spanish, Italian, Portuguese, Dutch, Polish, Greek, Turkish, Russian, Ukrainian, Indonesian, Vietnamese, Swedish, Finnish, Danish, Norwegian, Romanian, and Hungarian. Each language has native prediction and accented character variants.

### Is MergeKey customizable?

Yes, MergeKey offers several customization options. You can choose from four keyboard styles: iOS 26 Liquid Glass, Classic, Flat, and Flat Glass. Additionally, you can customize key fill and border colors, adjust key fill opacity, select spacebar icon options, and control animation speed.

### Does MergeKey collect my typing data?

No, MergeKey prioritizes user privacy. It does not collect or transmit your typing data; all data stays on your device. This ensures a secure and private typing experience.

### How does MergeKey help with learning or practice?

MergeKey is built for learners with several helpful gestures. Swipe up to teach the keyboard a new word, swipe down for continuous mode with all keys visible, swipe left to delete whole words, and swipe right to repeat the last word. It also includes a built-in typing game for practice in any language.

### What are the smart features of MergeKey?

MergeKey includes a prediction bar with word suggestions, long-press functionality for accented letters and symbols, and a character preview bubble on key tap. It also offers an optional dedicated number row, double-tap shift for caps lock, and accelerated backspace for deleting characters and words.

### What is the rating and price of MergeKey?

MergeKey has a perfect rating of 5.0 stars from 1 rating. It is currently available for free.

### On which devices is MergeKey supported?

MergeKey is supported on iPhone and iPod devices. It is rated for ages 4 and up.

## Version history (last 5 releases)

### 1.0.9 — 2026-08-21

One-handed typing
- Shrink the keyboard to the left or right for easy thumb reach
- Switch sides or go back to full width right from the keyboard
- Turn it on in Settings under Keyboard

Small fixes throughout

### 1.0.8 — 2026-08-09

Autocorrect is here:
- Fixes typos in all 22 languages
- Off by default - try it in Settings

Cleaner Settings, cleaner look
- Reorganized settings screen
- Improved Style preview

Small fixes throughout

MergeKey now requires iOS 18.

### 1.0.7 — 2026-06-10

Faster than ever
- Prediction now works ahead of your fingers — merging keys and suggestions respond instantly, from the very first letter
- Battery friendly: pauses background work in Low Power Mode

Feel and hear your typing
- New: Haptic Feedback and Key Click Sound, on by default in Settings (requires Full Access)

Design polish
- iOS 26 Liquid Glass keys are now truly translucent
- Clearer Transparency slider: 0% = solid keys
- Minor design improvements and bug fixes

### 1.0.6 — 2026-04-17

Quick Language Switch
- Hold the space bar to jump between up to 3 languages without leaving the keyboard
- New multi-select in Language settings with a clear "Active" indicator

Accented words feel natural
- Typing "caf" now keeps the e key visible so you can long-press for é in "café"
- Works across every language with accents (ñ, ç, ã, ß, ł and more)
- Punctuation typed on the 123 layer (like the apostrophe in "say's") now extends the current word correctly when you come back to letters

Richer word game
- Hundreds of words per language in the practice game — fewer repeats, fresher rounds

Polish
- Faster typing in merge mode
- Style and Colors settings no longer overflow on smaller iPhones
- Style preview aligns with the test input field below it

### 1.0.5 — 2026-04-15

Smarter predictions
- Each suggestion explores a different word path, saving more keystrokes
- English (US) and English (GB) with correct regional dictionaries
- Portuguese (BR) and Portuguese (PT) split the same way

Design & customization
- Liquid Glass refresh throughout the app on iOS 26
- New style preview, transparency slider, and spacebar icon options
- Keys now match stock iOS white in light mode

Keyboard fixes
- Dutch layout corrected to QWERTY
- Greek final sigma (ς) added on long-press Σ
- French É variants and missing accents restored
- Shift icon rendering with custom colors fixed

Under the hood
- Faster typing in merge mode
- Prediction undo: tap a prediction, then backspace to revert
- Game words now preserve correct casing

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## More apps by Andrei Achziger

- [Weltraum](https://appshunter.io/ios/app/weltraum/id1501514378)
- [Random Drop](https://appshunter.io/ios/app/random-drop/id1513193929)
- [Fishy Watch](https://appshunter.io/ios/app/fishy-watch/id6449793065)

All apps by Andrei Achziger: https://appshunter.io/developer/1411891455

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-21.*