SigiCalc vs GraphOE Graphing Calculator

SigiCalc is a fast, clean RPN calculator that draws your functions. Enter a calculation the RPN way – numbers first, then the operation – and as soon as your expression contains X, tap Graph to see it plotted. No equals key, no parentheses, no fuss. REAL RPN • Classic stack-based entry with Enter, Undo and All Clear • Keys light up only when the stack has enough values – you can't make an invalid entry • The display shows your result, the whole expression in normal notation and the raw stack LIVE FUNCTION GRAPHS • Use X as a variable and plot the result instantly • Pinch to zoom, drag to pan, tap to zoom in, double-tap to reset • Touch and hold to read the exact x / y value on the curve • Discontinuities like tan(x) or 1/x are drawn correctly – no misleading vertical lines SCIENTIFIC FUNCTIONS sin, cos, tan and their inverses, natural log, square, square root, reciprocal, sign change and π DESIGNED FOR TODAY'S DEVICES • Light and Dark Mode, portrait and landscape • iPad: calculator and live graph side by side • Smooth animations and haptic feedback PRIVATE BY DESIGN SigiCalc works entirely on your device. No account, no network, no ads, no tracking. Example: X ↲ X sin × plots x · sin(x). What changed versus your text and why: - Leads with a benefit, not a category: "draws your functions" is the hook; "simple and practical graphical" told the reader nothing they'd search for. - Explains RPN in one sentence for people who don't know it, since that's the biggest reason someone bounces. - Bulleted feature blocks — App Store descriptions are skimmed, and the capitalised headings scan well in the store's plain-text rendering. - Adds Dark Mode / iPad / privacy, all of which are new in 3.0 and are things reviewers and users look for. - Fixed "polish" → "Polish" and "equation" → "expression" (you plot expressions, not equations).

Welcome to GraphOE, It is a tool for graphing/plotting functions in 2D! We currently support the following features: 1. Explicit, Implicit, Parametric, and Polar graphs. 2. Region labeling of inequalities for explicit and implicit functions. 3. Adjustable variables and animations. 4. Auto intersections for explicit and implicit curves. 5. Point of interest like minima, maxima and inflection points, for explicit curves. 6. Cartesian(Rectangular) and Polar(Circular) coordinate system. 7. Intuitive zoom-in/zoom-out and panning. 8. Screenshots with various backgrounds for canvas. 9. Auto saving feature. Saves to the local storage. 10. Functions: sin, cos, tan, cosec, sec, cot, sinh, cosh, tanh, asin, acos, atan, asinh, acosh, atanh, log and exp 11. Intuitive equation editor with beautiful fonts. 12. Unlimited number of functions in single canvas. 13. Fully supported dark mode or any color background mode. 14. Scatter plots with point list Tips and Tricks 1. Touch near the intersection or point of interest to label them. 2. Change the background of the canvas to black to enable dark mode. 3. To create a scatter plot just add all the points like (1,2),(2,3), etc to the equation editor We hope that GraphOE will be useful for you in understanding the graphs of various functions. Please feel free to contact us at graphoe7@gmail.com You may also use our online desktop application at https://graphoe.com/graph