Features: * Support many types of unit (weight, length, area, volume/capacity, temperature, power, speed, pressure, computer memory units) * Multi-country currency conversion (auto update exchange rate) * Supports the units of measurement commonly used in Asia (for example: Hong Kong's tael, China's catty, Taiwan's ping, Japan's jian) * Real-time conversion (Keep updating the result when user is updating the input) * Automatically save the last used unit, so that you can use it faster next time * Support negative number * Support portrait and landscape interface * Support three languages (Traditional Chinese, Simplified Chinese, English)