Calculator Keyboard - Calkey

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.