Calcdraw: Canvas Calculator

Calcdraw is not just another line calculator—it is a math canvas.
Like a whiteboard, freely drag numbers, operators, and results to make formulas visible, explorable, and reusable.

[Key features]
- Canvas editing: drag to build expressions, layout as you like, no more one-line confusion
- Linked results: reference any result; change one, all linked cells recalculate
- Function graphs: type a formula and get a plot; drag the Y axis to adjust
- Variable sliders: drag a slider to change results in real time, demonstrating parameter effects
- Scenario templates: loan, tax rate, physics formulas, one tap to apply
- Unit conversion: built-in categories, convert while you calculate

[Why different]
A traditional scientific calculator gives one line of answer; Calcdraw lets you see the process—visual like a graphing calculator, yet free like a math whiteboard.

[Who it is for]
Students and postgrads, engineers, finance and accounting, teachers—anyone tired of line input who needs visual calculation.

[Free and Pro]
Free includes core calculation and basic graphs; upgrade to Pro for unlimited canvases, advanced graphs, colored groups, and watermark-free export. Monthly / yearly / one-time lifetime.

Download Calcdraw now and turn math into a canvas you can see.