Calculator Keyboard - Calku

Name: Calculator Keyboard - Calku
Rating: 4.7 (486 reviews)
Author: Supagarn Pattananuchart

By: Supagarn Pattananuchart

Calculate from your keyboard

Features & Capabilities

Calku turns your keyboard into a powerful calculator, letting you perform quick calculations inside any app—Messages, Notes, browser windows, and more—without switching contexts. It features a robust scientific calculator and keeps a history of results for easy reference.

Key features include Dark Mode, full iPadOS compatibility, customizable decimal points, keyboard feedback (sound and haptic), and seamless usage across apps. Say goodbye to copying and pasting; compute directly where you type.

User Growth & Download Statistics

App Education Developer Tools

By:

Supagarn Pattananuchart

Rating:

4.70

(486) 1 new ratings

Version:

3.9 Last updated: 2025-12-21

Version code:

880879111

Creation date:

2020-12-30

Compatible devices:

Size:

3.42MB

URLs:

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-05

Compare stats and ranking:

Ranking

# 78,841 ▲ 123

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

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Developed by:

Supagarn Pattananuchart

Apple Apps Store

https://apps.apple.com/us/app/calculator-keyboard-calku/id1546065778

User Reviews

Users generally praise Calculator Keyboard - Calku for being easy to use and handy for quick calculations, especially while typing in other apps or in messages. Many find it makes number input quicker than relying on standard keyboard keys and appreciate the keep-result feature. However, several reviews note stability issues, with reports of the app not working or behaving buggy at times. Some users desire features like a history button, haptic feedback, or smoother setup on iPad. Overall, it's useful when it runs reliably.

Pros