Calculator Keyboard - Calku 4+

Calculate from your keyboard

Supagarn Pattananuchart

    • 4.8 • 277 Ratings
    • Free
    • Offers In-App Purchases



Calku turns your keyboard into a calculator simplifies the calculation. You can use it at any time, such as when sending messages, doing homework, or taking notes. No need to switch apps, no copy and paste required. Compatible with all applications.

Compatible with many apps such as
• Messages, Messenger, WeChat, Line,
Twitter, Telegram, Instagram, ...
• Safari
• Notes
• Mail
• Stocks
Many More!

Features :
• Dark mode supported
• iPad OS supported
• Decimal point configuration
• Scientific Calculator
• Calculation history
• Text Clipboard
• Keyboard sound

What’s New

Version 3.1

• Performance improvements
• Bug fixes

Ratings and Reviews

4.8 out of 5
277 Ratings

277 Ratings

Scott1155 ,

Calku Works Great!

I came into this app by accident as I was not looking for a calculator, but I must say this app really works great! I have found this app comes in handy to do a quick calculation while in other apps. The app is easy to use and performs well. My thanks to the developers for a simple app that performs great. Job well done!

JoeDoom57 ,

Great idea!

Pretty great idea for an app! Works flawlessly and I like the “keep result only” setting.

Jorgenis H ,

Great idea 💡

Is very useful but sometimes is buggy 😊

App Privacy

The developer, Supagarn Pattananuchart, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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