EuroStart26 is a user-friendly calculator designed for converting and calculating amounts between euros (EUR) and Bulgarian levs (BGN). It is particularly useful during Bulgaria's transition to the euro, offering quick calculations for real-life scenarios like shopping or at the checkout. Users can compute the final sum in either currency, input mixed payments, and receive accurate change calculations. The app also allows verification of returned change and features a direct BGN-EUR converter using the fixed exchange rate set by the Bulgarian National Bank.

This application caters to a wide range of users, including customers wanting to ensure correct payments, individuals needing quick currency calculations, and merchants or cashiers handling both currencies. With a focus on speed and clarity, EuroStart26 operates without advertisements or complex menus, making it accessible for anyone still accustomed to thinking in levs. However, it is important to note that the app does not replace cash registers or accounting software, as all calculations depend on user-inputted values and the official exchange rate.