# Calculator Keyboard - Calkey — Calc Keyboard-Tip & Split Bill

> Calc Keyboard-Tip & Split Bill (iPhone/iPad app by Ryunosuke Karimata.)

- Source: https://appshunter.io/ios/app/calculator-keyboard-calkey/id6758283103 (this page in markdown: same URL + `.md`)
- Developer: [Ryunosuke Karimata](https://appshunter.io/developer/1871969813)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.6 · 1 MB
- Languages: American English, Japanese
- Released: 2026-01-30
- Data updated: 2026-07-23
- User reviews in markdown: https://appshunter.io/ios/app/calculator-keyboard-calkey/id6758283103/reviews.md

## What is Calculator Keyboard?

Calculate without switching apps.
A calculator built right into your keyboard — works everywhere.
Split bills, calculate tips, and insert results instantly.

Tired of switching apps back and forth?

Calkey is a calculator built right into your keyboard. Whether you're in Messages, Notes, Safari, or any other app, you can calculate on the spot—without ever leaving your keyboard. Results insert with a single tap.

■ Perfect for:
• Splitting the bill
　Calculate "125 ÷ 4" right in your group chat and send it instantly.

• Shopping abroad
　Convert currency and paste the result straight into your notes.

• Quick calculations
　No more hunting for the calculator app and switching away from what you're doing.
 
■ Key Features
• Built into your keyboard
　Access it anytime, anywhere.

• One-tap input
　Tap any result to insert it as text.

• Formula input
　Insert the full equation too. Show your work with formats like "1000 + 500 = 1500."
• Customizable
　Light/Dark mode support and adjustable keyboard height.
• Works offline
　Your calculations stay private—nothing is sent externally.

Make your iPhone keyboard smarter.
Download Calkey now and experience effortless calculations.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro Upgrade | $2.99 | one-time |



## Version history (last 5 releases)

### 1.3.3 — 2026-07-12

v1.3.3 Update

■Improvements
　・The keyboard now adapts more reliably to Dark Mode and screen-size changes.
　・Review requests are now timed more appropriately based on your usage.

■Fixes
　・Fixed how the app reports Pro purchase transactions that cannot be verified.

### 1.3.2 — 2026-06-14

v1.3.2 Update

■Improvements
　・Calculation previews now update more accurately after changing angle mode.
　・History data validation has been strengthened.

### 1.3.1 — 2026-05-20

v1.3.1 Update

■ Improvements
    Expression validation has been improved for more reliable calculations.

### 1.3.0 — 2026-05-13

v1.3.0 Update

■New Features
　・You can now restore a calculation right after clearing it with AC.

### 1.2.5 — 2026-05-05

v1.2.5 Update

■Fixes
　・Fixed operator input behavior
　・Fixed some percent calculation cases
　・Improved Pro purchase status detection

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## More apps by Ryunosuke Karimata

- [SNS画像編集アプリ - Snugry（スナグリー）](https://appshunter.io/ios/app/sns-snugry/id6758949172)

All apps by Ryunosuke Karimata: https://appshunter.io/developer/1871969813

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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 2026-07-23.*