Google Calculator, Soulver, SpeedCrunch, Numi, SaiCalculator, Microsoft Calculator Plus, Caligator, Calculator N+, HiPER Scientific Calculator, CalcNote, Derivative Calculator, fxSolver, SpeQ Mathematics, Free42, Engineering Calculator, Simple Calculator, Moffsoft FreeCalc, Numbat, Qalculate!, Microsoft PowerToy Calc, GeoGebra Scientific Calculator, Calculator++, Math42, Kalq, CalcPP, Calcbar, Abacus, Calculator by Xlythe, Standard Deviation Calculator, Unit Wolf, Online Terminal Calculator, Limit Calculator, Calculate, HEXelon MAX, Supercalc, Converters360, ECW Expression Calculator, Getmathcharts.com, CalcBuddy Calculator, kanakku, EdenMath, MultiCalc, Mathdroid, Calculairum, Voice Calculator, EasyCalculator, The Calculator, GlassCalc, MyCalc2, Getcalc, Design Calculator, Calc98, FinKit, Numeric Notes, TTCalc, Arithmate Pro Calculator are some alternatives to RealCalc Scientific Calculator.