Calculator.X is calculating as you enter your expression. You will not believe but it is damn convenient!
Calculator.X supports operations with unlimited number of memory cells!
Calculator.X saves the history log of you calculations!
Calculator.X supports actions with unlimited number of constants and groups of constants!

Calculation
Calculator.X is not waiting for you to input the entire equation. The calculation is made as you enter each symbol. The result can be saved in any of the memory cells. Just press the “=” button and the calculation and the result will be saved in the history log.

Memory
You can work with the unlimited number of memory cells. You can enter the result of calculation into the new or existing memory cell. Each memory cell has the ability to add, subtract and save the result of the current calculation. You can input the content of any memory cell into the current calculation and continue calculating.

History log
Save your calculation and its result into the history log. Afraid to forget what you calculated? Just add a comment to the saved result and the history log will be most helpful for you. Any saved calculation can be used in future calculations.

Constants
Frequently using physical, astronomical or other constants? Would like to add some new constants or remove the ones you don’t need? Want to group them the way to make it more convenient for you? With the Calculator.X, it is possible! Besides, you can edit the constants and use them in the current calculation.

The free trial version contains pop up ads and has limited functionality. You can use no more than three memory cells, save up to three entries in the history log, and add one group of constants and three constants. You can turn the ads off and obtain the full functionality right in the app.