myCryptoPortfolioTracker is a simple web app tool used for easy tracking of your crypto portfolios on various repositories. It allows you manage multiple portfolios and multiple repositories (exchanges, wallets) under same user account.
App is built on CoinGecko.com API framework. Crypto coins prices of your open positions and supported vs currencies are updated every few minutes, meaning, you get ‘almost real-time’ valuation.
For the purpose of profit loss calculation for closed positions we use FIFO (First In – First Out) method, which is implemented on Portfolio-Repository-Coin basis. Same method is used for calculation of average buy price for open positions.