Every other calculator makes you type it, then trust it. Calx listens, answers exactly, and shows you every step it took.
“what is 286 divided by 5, into 90 percent”
286 ÷ 5 is 57.2, and 57.2 × 0.9 is 51.48.
One line per step. Each line is checkable against the one above it on paper. When a figure had to be rounded to be shown, that line reads ≈ instead of =, so you always know which numbers are exact. Working appears whenever a question takes more than one step. A single step gets the answer and a sentence, because a line of working would only repeat it.
“286 / 5 * 90%”
286 ÷ 5 is 57.2, and 57.2 × 0.9 is 51.48.
“1000 / 3 * 2”
1,000 ÷ 3 is about 333.33, and 333.33 × 2 is about 666.67.
It tells you twice: ≈ on the line, and is about in the sentence.
No button held down, no command words, no syntax to learn. It stops listening when you stop talking. Written numbers, fractions, multipliers and percentages all work. On Calx Pro, the answer is read back to you.
“20% of 450 split 3 ways”
450 ÷ 3 is 150, and 0.2 × 150 is 30.
“18 kg in lb”
That is 39.68 lb.
“85 + 15%”
That is 97.75.
There is a keypad behind a toggle, for when talking is not appropriate.
A language model reads your sentence and turns it into a sum. It never produces the number. The arithmetic is done by a maths engine, and the model is not given a way to hand back a figure.
Ten, fifteen, eighteen and twenty percent, with the total beside each. Say split between four and a per-person column appears. Tap the row you want to keep it. Nothing is chosen for you.
“tip on 458, split between four”
On 458, four options.No trial, no clock, no card. The paid tier is only about understanding sentences: unlimited interpreted questions, and the answer read back.