Back to Daily Vibe CodeDay 11 of 30
Calculator
Beginner 30minTool
The Prompt
Build a calculator app. Features: numeric keypad, basic operations (+, -, *, /), decimal support, clear (AC) and delete (DEL) buttons, calculation history panel showing previous calculations, keyboard input support. Display should show current input and previous result. Add percentage and sign toggle buttons.
What you'll learn
Prompt crafting
Turn a one-line idea into a clear build brief an AI can execute.
Rapid prototyping
Ship a working version in under an hour — speed over polish.
Core UI patterns
Practice the layouts and components every app relies on.
Shipping fast
Build the habit of finishing and sharing what you make.