CryptoKing is an easy to use multiple crypto and currency calculator, convertor & comparison tool. That uses live up to date data on the top 300 crypto curencies. For example put the value of $100 in the currency section, choose your currency and then choose your crypto eg ETH. The App will now calculate how much ETH you will get for that amount of money.
It will work vice versa too, for example you could put in the crypto value 0.5 in the ETH value, CryptoKing will now display the actual cost of that amount of crypto in your chosen currency.

The PRO version ($1.99) allows multiple currencies and crypto at one time, so change a value and the other options will refresh to show values in different currency and crypto. Perfect for day trading too.
Works very well when you are working off 2 different exchanges for example Bittrex (USD) and Coinspot (AUD).

No personal data is used on CryptoKing, nor is access to any crypto wallets needed as this is purely a calculation, comparing and converting tool.

Enjoy CryptoKing and hopefully it makes your Crypto trading a bit easier and faster, we all know how quick things move in the crypto world!

available here at android store https://play.google.com/store/apps/details?id=com.cryptoking.app

or here at apple store

https://itunes.apple.com/us/app/cryptoking-crypto-calculator/id1335516447?ls=1&mt=8