Trig, inverse and hyperbolic functions, factorial, exp, nth roots, logs, modulo, gcd/lcm, nPr/nCr, percent, reciprocal, and implicit multiplication, with M+/M-/MR/MC memory and an Ans variable.
Winston Scientific Calculator
An offline scientific calculator, grapher, and study toolkit.
Winston Scientific is a local-first calculator for iPhone and iPad with DEG/RAD/GRAD angle modes, Result Audit verification, an expanded scientific function set, an interactive grapher, a unit converter, a CODATA 2022 constants library, statistics, and a searchable formula library — all fully offline.
Switch angle units from any tab. Radians is the default so calculus and physics work matches the standard convention.
Recheck expressions with an independent parser pass, review residuals, finite-result status, angle-mode context, domain-sensitive warnings, and copy shareable result forms.
Plot f(x) with pinch-to-zoom, drag-to-pan, labeled gridlines, a draggable trace readout, and an optional second curve g(x).
Estimate the derivative and definite integral of a function, scan a range for roots, minimums, and maximums, view a sample table, and copy a clean lab report.
17 categories and more than 140 units using the defined ratios published in NIST SP 811. No network required.
45 fundamental physical constants from NIST CODATA 2022, tappable to insert into the calculator or copy.
Mean, median, range, population and sample standard deviation and variance, plus linear regression with slope, intercept, r, and R².
A searchable catalog of 68 formulas across algebra, geometry, trigonometry, calculus, physics, finance, and statistics, with 12 built-in mini-solvers.
Simple by design
- No account creation
- No sign-in
- No ads
- No analytics or tracking
- No required web connection — the app works fully offline
Finance and physics formulas are general education references only and are not financial, medical, or engineering-safety advice.