01 · iPhone and iPad · Version 1.1

Formulas you keep.

Save a formula once. Fill in the numbers. Run it again. CueCalc is a scientific calculator for iPhone and iPad, with units, dates, fractions, and a programmer keypad. The calculator is free and has no ads.

CueCalc standard calculator on iPhone
Standard calculator. The expression stays on screen.
Status
On the App Store
Version
1.1 is the current app
Price
Free. Pro from $1.99
Devices
iPhone and iPad

The App Store listing requires iOS 26 and iPadOS 26. Seller Mohsen Saki. Category Utilities. Age rating 4+. The in-app purchases on the listing are CueCalc Pro Monthly at $1.99, Yearly at $14.99, and Lifetime at $29.99. The price you are charged is confirmed by Apple in the app.

Version 1.0 had a camera solver. Version 1.1 does not use the camera, does not include that solver, and does not ask for camera permission. The illustrated walkthroughs are on cuecalc.app/tutorials.

Six modes

Standard

Decimal math, a live expression line, percentages, and history. Free.

Scientific

Trigonometry, logs, powers, roots, constants, and memory. Free.

Units, currency, dates

Built-in units and dates are free. Live currency and stocks are Pro.

Fractions

A real fraction bar, simplify, and mixed numbers. Free.

Programmer

Hex, decimal, octal, and binary, with bitwise operations. Free.

Graph

Plot functions, pinch to zoom, and trace the curve. Pro.

CueCalc on iPad with History beside the calculator
On iPad, History is the column beside the calculator.

iPhone and iPad

On iPad, History sits beside the calculator. Settings, Themes, and Cue stay in the top bar. Mode is the same button as on iPhone. One purchase covers both.

Inside the app there are 21 languages, including Persian, Arabic, and Urdu, with the digits and direction each one needs. The same marketing site exists in those languages at cuecalc.app.

What people wrote

cuecalc.app publishes a 5.0 App Store rating and these three notes.

Absolutely brilliant. Intuitive, fast, and carefully designed.

You can create your own formulas with variables, then enter different values whenever you need.

An accountant’s note: a professional calculator that does more than the usual apps.

Free to start

Monthly

$1.99 per month

Every Pro feature. Cancel any time.

Yearly

$14.99 per year

The same Pro features. cuecalc.app calls this 37% under twelve monthly payments.

Lifetime

$29.99 once

The same Pro features, with no renewal.

The 7-day Pro trial starts the first time you open CueCalc. It does not ask for a card. Subscribing or buying Lifetime bills immediately and does not add another trial. Nothing is billed only because the trial ends. There are no ads on the free calculator or on Pro.

The full comparison is on the pricing page.