HalfHalf

A beautiful, Nordic Minimalist 60/40 co-pay Progressive Web App (PWA) calculator designed specifically for mobile smartphone viewports.

It simplifies co-payment splits where the government covers 60% and you pay 40%, incorporating a daily subsidy limit.

Features

Locked 60/40 Ratio: Calculations are hardcoded to the 60:40 split structure for speed and simplicity.
Editable Inline Cap: Adjust your remaining daily government subsidy directly from the main tracker widget.
Bidirectional Inputs: Enter the original price, the government portion, or your portion—the other two values calculate instantly.
No-Scroll Mobile Design: Specifically optimized to fit fully on smartphone screens without vertical page scrolling.
Logs Archive Drawer: Review saved calculations, search entries, or clear history in a sleek sliding menu drawer.
Export to CSV: Download your calculation history to a spreadsheet file.
Full Offline PWA: Fully installable on your device's home screen and functions completely offline via service worker caches.
Persistent Storage: Your calculations archive and daily cap changes are saved locally to localStorage so they persist across page refreshes.

HTML5 & CSS3: Semantics and custom variables tailored for a Nordic Light theme.
Vanilla JavaScript: Reactive computations, service worker lifecycle, and localStorage management.
Lucide Icons: SVG icons loaded dynamically via CDN.
Google Fonts: Inter & Instrument Serif.

To host this locally:

This project is licensed under the MIT License - see the LICENSE file for details.