What is your trading volume per day to get a $10-15 profit? How does this trading service conduct arbitrage, via API keys from your exchange accounts?
I started with $2000 split in between two exchanges (for me, Bittrex and Binance). On good days, it would reach 30 dollars net profit a day (already excluding exchanges' fees).
And yes, the software uses API keys from your personal accounts (keys with permission to trade only). So funds never leave your account.