Yes, RealPlan runs on everything except for the iFly-dedicated devices, which don't have the processing power to find a solution quickly. iFly runs great on Windows, and since most desktops/laptops are more powerful than Android or iOS tablets, it can be quicker to run RealPlan on Windows and then transfer the resulting flight plan to another device.
Of course you'll need a multi-platform data subscription to do that, though.