The calculator that understands plain English — private, precise, and completely offline. Nothing you type ever leaves your iPhone or iPad.
The result appears live while you type, with the right order of operations. Percentages work the way people expect — 200 + 10% is 220 — and there is no rounding noise: 0.1 + 0.2 is 0.3.
Fractions stay exact — 1/3 + 1/6 is ½. Tap Steps on any answer to see every operation, one line at a time.
Trig, inverse and hyperbolic functions in degrees or radians, logs, powers and roots, factorials, nCr and nPr, π, e and EE — over 40 functions, with memory, Ans, and undo and redo for what you type.
“18% tip on $64 split 3 ways”, “mortgage payment on 250000 at 5.5% for 25 years”, “days until christmas”, “solve x² − 5x + 6 = 0”. The calculator reads these itself and answers exactly.
“I bought 4 notebooks at 3.75 each and paid with 20 — how much change?” An AI on your device turns the words into a sum; the calculator checks it and works it out. You always see how your question was read.
Units (90+), percentages, tip & split, discount & tax, loans and mortgages, savings growth, statistics, an equation solver, a graph plotter, a programmer’s calculator, dates, fractions, primes, best buy, and memory & variables.
The AI never does the arithmetic. It only rewrites your words as a sum. The calculator then checks that every number came from your question, compares more than one reading, and works out the answer itself — showing “Understood as …” above it, with a clear note whenever anything is uncertain. Explanations of maths ideas are clearly marked, and any sum inside them is checked and corrected.
Every answer is kept, grouped by day, searchable, with pins and your own labels. Delete one, several, or everything — and undo it if you change your mind. Export to text or a spreadsheet whenever you like.
Big, comfortable keys and a clean display. On compact iPhones the scientific keys fold into two swipeable pages, so every key stays easy to hit.
A navigation rail down the side, a paper-tape of recent sums in portrait, and your full history beside the keys in landscape. Every screen uses the room.
170! is 7.2574156153E306, and the calculator says so. Try something even larger and it tells you plainly that the answer is too large to show, instead of hanging or printing gibberish.
Espresso — satin espresso brown with gold highlights and cream text. Cream — warm satin cream with gold and espresso accents.
The AI is built into the app and runs on your device. There is no download, no account, no analytics and no network connection of any kind — it works in flight mode, underground, anywhere. Your history, settings, memory and variables stay on your device, and deleting the app deletes them.
No in-app purchases, no ads, no subscription. For iPhone and iPad with iOS 17 or later.