SigiCalc vs Crammfly

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).

"Crammfly" is the Flashcard App that support your own study with [Learning Timer],[Review Schedule]. ※※※※※※ Features ※※※※※※ 1, Learning Timer While you studying by "Crammfly", it countdown your learning time. It makes you focus on studying to conscious the learning time more. ([Learning Timer] can also be turned off) 2, Review Schedule When the time comes that you should review, "Crammfly" will send you a notification. And, Review schedule can set the way you want it. 3, Switching of Learn Order The learn order can change [front → reverse] or [reverse or front], and can replace the all cards order at random. 4, Auto-Flip Without operating screen, "Crammfly" can automatically [Flip over a card] and [Move to next card] at every preset seconds. And combined with the feature of Auto-Reading(see below), It is automatically [Flip over a card] and [Move to next card] at the end of reading. 5, Auto-Reading It can change the pitch and reading-speed. And it support for the 13 languages(below). ~ Supported languages ~ English(US) English(UK) Simplified Chinese Traditional Chinese French German Italian Japanese Korean Polish Spanish Swedish (※1: If notification settings in your device is on)