SaiCalculator is described as 'Online calculator tool with 3D graph render, 2D function graphs, scientific calculator and integral calculator' and is a Calculator in the education & reference category. There are more than 10 alternatives to SaiCalculator, not only websites but also apps for a variety of platforms, including Android, Android Tablet, Windows and Linux apps. The best SaiCalculator alternative is GeoGebra, which is free. Other great sites and apps similar to SaiCalculator are GnuPlot, fxSolver, Google Calculator and Windows Calculator.