Online British System – Engineering Calculators Review

Good app, but could you add support for Units fo the international or metric units system? The International Unit System is used by more than 90% of world's population and I think would be nice to have the option to use this system because making only the british system available you basically answer demands only form the USA and Britain, plus scientists on the whole world including in the United States use the metric system, I was going ask for refund on this app but I rather give you a hint and the opportunity to improve such a good app!
Review by Lucas_MSA on Engineering Calculators.