calc

Average price calculator for multi-currency portfolios

Language
TypeScript
License
Proprietary
Category
Web App
Open App

Client-side calculator for tracking average purchase prices across crypto, stocks, commodities, and fiat. Multi-panel interface with automatic rate fetching, cross-currency triangulation, and localStorage persistence.

Features

01

Multi-panel layout — unit list, transaction list, and detail/overview panels

02

Automatic rate fetching from 6+ sources with intelligent fallback chains

03

Cross-currency triangulation through USD, GBP, EUR, ETH, and BTC pivots

04

Historical seed data — daily CoinGecko prices back to 2021, monthly API data to 2010

05

localStorage persistence with JSON export/import

06

Fully client-side — no server, no accounts, no tracking