Is there sweet spot amount where the fees would be less or is it just a flat percentage? CoinTracking is an innovative management tool for over 5, existing crypto-currencies. With multi-signature and multiple wallet support, Copay makes it simple for developers to test and demo bitcoin without fumbling other mobile apps. The Airbitz wallet only supports bitcoins, the Bitcoin Cash, and other flat exchange rates. Investment Reviewing CoinTracking: our experiences with detailed instructions With this tool you can keep a clear overview of your own crypto-portfolio: current value, profit or loss of trades, balance sheets, realized and unrealized profits, tax returns and much more! Being a hardware that a user can carry anywhere, the KeepKey wallet is more secure since it is less prone to hacking and online data theft. Less fees involved.