This looks pretty good - curious how difficult it would be to add the fees for each exchange?

The site looks very good and easy to understand. Your site is clean and this is the thing I liked most.
I have bookmarked your site, so that I can check back frequently for a possible arbitrage.

But I'm just wondering about the fees for the two exchanges, because at the end I have to make some profit after paying all expenses.

Is it possible to show the profit percent after deducting all expenses?

Lets say I have selected BTC/USD to look for a arbitrage opportunity from any exchanges.
Then the result will show the profit/loss percent after deducting all the expenses.

And is it the last trade prices your site shows?

It's very complex I think.

You need to be more clear with fiat currencies especially.

It took 10 minutes to understand what is what...

btcmarkets.net is not possible with € , right?
So I need a bank account that can deal with $?

You should add this to the "Please only apply if you have:".


And also there is the risk of fraudulent payments to your bank account from users. This is very risky because you can loose money and bank account.
Is there anything that btcmarkets does to prevent this?