Forty-plus worksheets, RPN, chain and algebraic entry, and a keyboard you already know, built to get the most from your iOS device. Loans, bonds, cash flows, statistics, probability, triangles, vectors and an equation solver, all in one app.
30-day free trial · one payment, no subscription
Familiar business-calculator logic, extended with menus, editors and iOS conveniences.
Time value of money, amortization, bond price & yield, Black-Scholes options, depreciation, interest-rate conversion and account balances.
Break-even, inventory turnover, return on investment, percents and margins, bill-tip-split, currency exchange with live rates, equal and unequal period cash flows (NPV, IRR, payback).
One- and two-variable statistics, curve fitting, sixteen probability distributions, and combinations and permutations.
Plane and spherical triangles, quadratic equations, 3D vectors, complex numbers, trigonometry, logarithms and NIST-CODATA constants.
Type any equation and solve for any variable. Convert units, angles, polar/rectangular coordinates, currencies and interest rates.
Editors for your lists and equations, storage registers, memory backup and restore, date and time math, and detailed help for every menu.
Real worked examples from the app.
Main menuNine menus, one keyboard
Scientific menuEvery worksheet two taps away
Time Value of Money$250,000 loan payment: 1,580.17
Quadratic equation2x² − 2x − 12 → −2, 3
Plane triangle3-4-5: angles, perimeter 12, area 6
Units conversion100 cm in every length unit at once
Inventory Turn OverCOGS 100,000 → turnover 4.00
Return on Investment50,000 invested, 10% profit → ROI 12%
Combinations10 items taken 3 at a time: 120
ProbabilityBinomial n=10, p=0.5: p(3) = 0.12
Every worksheet has a step-by-step guide with a worked example. Pick a menu to browse.
Use every function from the first launch. If it earns a place on your device, one payment unlocks it for good.