If the robots they sell could actually make a huge amount of money through trading the currencies, then what is the point in selling them to others and not utilising them on their own Forex accounts? The answer is logical - robots can barely make money for a Forex trader. Can a $99 FX robot or a free Forex robot really make hundreds or thousands of dollars every month? If it could, you have to ask yourself - would it really be sold for such a relatively low price?
Back tests – You can read my forex robot reviews to see if the forex robot has back tests which will give you a good idea how it performed historically, some forex robots even back test as for as 15+ years! Ideally, you would want back tests to have been done using real tick data and spreads, thus making the forex robot back test results as accurate as possible in the mt4 strategy tester