Powerful and user-friendly currency converter with the following features:

Offline Mode: Operates without an internet connection.
Multiple Currency Display: Simultaneously shows multiple currency rates for easy comparison.
Customizable Exchange Rates: Allows users to set and customize exchange rates.
150 World Currencies: Supports a wide range of international currencies.
Compact App Size: Small application size for efficiency.
Calculator Functionality (+-×÷): Includes basic calculator functions for convenience.
Cryptocurrencies Support (Bitcoin, Ethereum, Dogecoin): Incorporates popular cryptocurrencies.
Real-time Exchange Rates: Keeps users updated with the latest rates.
Copy and Paste Numbers: Allows easy input by copying and pasting numbers.