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.
Skill used:Ionic framework 3 angular5,inapp purchase