Version 1.4 keeps Winston Scientific focused on the features that are actually in the app. - New DEG / RAD / GRAD angle modes (radians default), which corrects trig derivative, integral, and root results in Function Lab. - Greatly expanded function set (hyperbolics, factorial, exp, nth roots, modulo, gcd/lcm, nPr/nCr, reciprocal, percent, floor/ceil/round) plus implicit multiplication. - M+, M-, MR, MC memory keys and an Ans last-result variable. - New Unit Converter (17 categories, 140+ units) and a CODATA 2022 Constants library (45 constants). - New Statistics tool with one-variable summaries and linear regression. - Interactive grapher with pinch-zoom, pan, draggable trace, labeled gridlines, and an optional second curve. - Actionable history (tap to reuse, swipe to delete, clear all) and a new Settings screen. - The Formulas tab includes a searchable 68-formula library with 12 live solvers. - Metadata and screenshots were refreshed so the product page matches the shipped app experience.

This update sharpens the interface: the iPad layout now uses a centered, comfortable reading width instead of stretching edge to edge, plus small display fixes. iPhone is unchanged.

Winston Scientific 2.0 — a big pro upgrade, still 100% offline. • RPN mode: a full HP-style X / Y / Z / T stack with Last-X. • Programmer mode: live DEC / HEX / OCT / BIN with AND/OR/XOR/shifts and 8–64-bit word sizes. • Equation solver: roots of any f(x) = g(x), quadratics and cubics (real + complex), and 2×2 / 3×3 linear systems. • Fractions: exact a b/c arithmetic with auto-reduce and decimal-to-fraction conversion. • Complex numbers: rectangular and polar arithmetic. • Named A–Z registers (STO / RCL) you can use right inside your expressions. No account, no network — every calculation runs entirely on your device.

A precision leap: the new calculus engine delivers accurate integrals (with error bounds), derivatives, roots, and inflection points, surfaced in the Lab and graph insights. Plus an audio-graph for the plot, full VoiceOver on the keypad, Dynamic Type, and a Share-able Lab report.

Version 1.4 keeps Winston Scientific focused on the features that are actually in the app. - New DEG / RAD / GRAD angle modes (radians default), which corrects trig derivative, integral, and root results in Function Lab. - Greatly expanded function set (hyperbolics, factorial, exp, nth roots, modulo, gcd/lcm, nPr/nCr, reciprocal, percent, floor/ceil/round) plus implicit multiplication. - M+, M-, MR, MC memory keys and an Ans last-result variable. - New Unit Converter (17 categories, 140+ units) and a CODATA 2022 Constants library (45 constants). - New Statistics tool with one-variable summaries and linear regression. - Interactive grapher with pinch-zoom, pan, draggable trace, labeled gridlines, and an optional second curve. - Actionable history (tap to reuse, swipe to delete, clear all) and a new Settings screen. - The Formulas tab includes a searchable 68-formula library with 12 live solvers. - Metadata and screenshots were refreshed so the product page matches the shipped app experience.

Version 1.3 is a major upgrade. New DEG/RAD/GRAD angle modes (radians default) that correct trig derivative, integral, and root results in Function Lab. Greatly expanded functions (hyperbolics, factorial, exp, nth roots, modulo, gcd/lcm, nPr/nCr, reciprocal, percent, floor/ceil/round) plus implicit multiplication. M+/M-/MR/MC memory and an Ans variable. New Unit Converter (17 categories, 140+ units) and a CODATA-2022 Constants library (45 constants). New Statistics tool (one-variable summaries + linear regression). Interactive grapher with pinch-zoom, pan, draggable trace, gridlines, and an optional second curve. Actionable history (tap to reuse, swipe to delete) and a Settings screen. The Study tab is now a searchable 68-formula library with 12 live solvers. Fully offline — no account, no ads, no tracking, no subscription.

Function Lab adds pro-grade analysis for equations in x: derivative estimate, definite integral estimate, min/max scan, root detection, sample table, graph handoff, and a copyable lab report.

Updated app icon and refreshed the native calculator experience.