Multi Calc 6x4 up your calculating power with six linked calculators on a single screen. Forget the various "M" buttons on a conventional calculator. With Multi Calc 6x4, you have six (landscape) or four (portrait) simultaneous calculators at your fingertips. Drag numbers from one calculator to the next, shake to clear all calculators at once, or double tap on a number for copy/paste. Simple and intuitive, Multi Calc 6x4 gives you the crunching power you need for the most complex projects. Brought to you by Illumipad - Practical Innovations.