CoinCalc, formerly known as Flip, is a free currency and exchange rate converter available for Android. It supports over 700 world currencies, including Ethereum, Bitcoin, Steem, Storj, Litecoin, Dogecoin, and many more cryptocurrencies. The app offers a beautifully simple material design, making it easy to use and navigate.

One of the most useful features of CoinCalc is the ability to convert between multiple currencies at once, making it easier to compare rates. The app also includes a built-in calculator and sorts currencies based on use for easy access. Additionally, the app works offline and provides data graphs up to a year.

CoinCalc is essential for those who deal with cryptocurrencies as it supports all major cryptocurrencies and provides real-time exchange rates. The app also allows you to save your favorite configurations for quick access. The currency rates are saved offline every time you open the app, ensuring that you always have access to the most accurate rates. Overall, CoinCalc is a simple, accurate, and essential tool for anyone who needs to convert currencies or deal with cryptocurrencies.