Ethereum, as a cryptocurrency platform, has been growing at an astonishing rate. With a market cap valuation of over $8 billion, it currently holds the 3rd largest cryptocurrency position, second only to Bitcoin and Ripple. However, Ethereum was developed not as a cryptocurrency. It was a smart contract platform that allows users to develop and deploy dApps and smart contracts.
These dApps may sometimes make use of an alternative token, depending on the function and structure of the dApp itself. This is the case with projects like Augur, the Golem Network, FirstBlood, Singular-DTV, Wings DAO and many others. Some of these tokens have taken a place on the top 20 biggest projects in the cryptosphere and although they have very different functions in their own context, they usually share the same ERC20 standard.
Read more here: https://www.deepdotweb.com/2017/06/01/tokencard-one-card-rule/
I am looking into getting a card eventually not sure I like the fee's