Calku turn 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.

Supported Apps :
• Messages,Messenger,WeChat,Line,Twitter,Telegram,Instagram
• Notes
• Mail
• Stocks

Features :
• Dark mode supported
• IOS 14 supported
• Ipad supported
• Decimal point configuration
• Calculation history
• Keyboard sound