As others have noted, this is a clone of https://shapeshift.io/. Clones are fine: it's possible that evercoin does something different/better than shapeshift. What is not fine is the apparent lack of transparency in fees [0]. evercoin says that they charge both exchange and miner fees but do not specify either; just because they include the fees in the final price does not mean they do not exist. Compare this to shapeshift [1], which only charges a miner fee, specifying exactly what that fee is.
[0] - from their FAQ (https://evercoin.com/faq):
> How about fees?
> Let's assume Evercoin tells you that you will receive 7.55 LTC for depositing 1 ETH. All fees (our fee and miner/blockchain fee) are all baked into our pricing so there is no additional fee. That means if we receive -exactly- 1 ETH then you will get -exactly- 7.55 LTC in your LTC wallet. No playing with the numbers, no surprises.
[1] - from https://info.shapeshift.io/about:
>With ShapeShift, what you see is what you get. The exchange rate shown is exactly what you'll receive, minus only the "miner fee." There is no exchange fee, or service fee.
> [fee schedule follows]