Unit Converter is a comprehensive conversion tool designed for Android. Developed by UUCMobile, this app offers more than 800 units and currencies across 40+ categories, making it an indispensable tool for daily use. The conversion categories include basic dimensions like length, area, and volume, as well as more advanced categories like mechanics, motion, and chemistry.

One of the key features of Unit Converter is its offline mode, which requires an internet connection only for currency updates. The app also offers a conversion builder to create custom conversions, a keypad with an embedded calculator for percentage calculations, and currency exchange rates from Yahoo Finance, European Central Bank, and other banks. In addition, it has a simple and clear design, supports landscape mode on all devices, and offers unlimited favorite conversions for quick access.

The app supports English, German, Portuguese, Spanish, Russian, Romanian, and Ukrainian languages, with more languages to be added in the future. It also offers sharing conversion results by email, copy/paste functionality, and displays results instantly while typing, eliminating the need for a "calculate result" button.

Overall, Unit Converter is a reliable and useful tool for anyone who needs to convert units and currencies regularly. In case users have any feedback or suggestions for new units, they can contact the developer via email or leave a comment in the Google Play Store.