E-traders uk limited
Brokers often look at it that way as well, and fail to even provide demo testing platforms to new customers. If they do offer demo platforms, they are often severely restricted. There are a few brokers that do offer unlimited demo testing, though, and a number of others that only require an email address, which means you could start a new trial with a new address if you had to.
If you are in this for fun and you are not treating investing as a business, then you do not really need to demo test. If however you are treating your trading as a business, you need to have a business plan and take every aspect of your binary options trading seriously.