Calculator with History keeps every formula and result visible — no more wondering "how did I get
that number?"
✅ No install required — works in any browser
✅ PWA support — add to home screen like a native app
✅ Works offline once loaded
✅ Tap any past result to reuse it
✅ Stores up to 100 calculations
✅ Optimized for iPhone & Android
Perfect for students doing homework, or anyone who needs to trace back their calculations.
