After pressing on "Start Trading" in the side menu of the Quantfury app, you will be prompted to select the cryptocurrency that you will be funding your account balance with. There are 7 cryptocurrencies that you can fund your Quantfury account balance wallet with: Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), Tether (USDT), Dai (DAI), Dash (DASH) and Qtum (QTUM).
Keep in mind that the USD value of your account balance in cryptocurrency, such as ETH for example, will be affected if the value of ETH appreciates or depreciates due to the market price fluctuations of ETH/USD pair. You can always fund your account balance wallet with Tether (USDT) or Dai (DAI) stable coins, that are always valued in the Quantfury app 1:1 to USD currency, so your account balance value in USD will always remain the same as your account balance in Tether (USDT) or Dai (DAI).
* Please note that you can fund your account balance in one cryptocurrency only. If you already funded your account, and wish to fund your balance in another cryptocurrency, you can exchange the cryptocurrency of your account balance into any of the other 6 accepted for account funding once every 24 hours, free of any fees at the real-time Binance exchange rate.