If you want to make profits from FX trading, you must download forex software. There is no two ways about it you have to be able to use a computer in order to trade currency exchange. In the old days it was possible to trade stocks by calling your broker, but forex has never really worked that way.
This is because forex trading did not begin until the gold exchange standard was relaxed when the Bretton Woods Agreement was dissolved in the 1970s. In those days forex trading was dominated by the banks and other major financial institutions. By the time private investors were getting heavily involved, the internet had arrived and forex software came into play.