Rechenwerk: Hex & Binary Calc

Rechenwerk: Hex & Binary Calc

Programmer calculator with RPN

0 ratings
$3.99

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Details

Released
October 19, 2026
Updated
October 21, 2026

Features

Rechenwerk: Hex & Binary Calc screenshot #1 for iPhone
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iphone
ipad
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About

Rechenwerk is the programmer calculator we always wanted in our pocket. Mix number systems in one expression, work in RPN like the HP-16C, and see every bit of your result. HEX, BINARY AND DECIMAL. IN ONE LINE. Write numbers the way an assembler reads them: $FF or 0xFF for hex, %1010 or 0b1010 for binary, @17 for octal, #42 for decimal — and mix them freely: %10001 + $123 + 32 + $A3 = 503 A number without a prefix is read in the base you selected. RPN LIKE THE HP-16C • Stack lift, ENTER, x↔y, R↓, CHS — or switch to algebraic entry: 3 + 3 =, like any calculator, with a live result • An unlimited stack that scrolls above X, or the classic four levels • Tap a level to use it again, swipe it into X or away • 16 registers with STO and RCL EVERY BIT IN VIEW • Word sizes from 1 to 64 bits; unsigned, 1's or 2's complement • The value in HEX, DEC, OCT, BIN and as characters ('ILBM') • A bit grid: tap a bit to flip it • Drag across bits to read a field — its value and its mask, perfect for hardware registers • Carry and overflow flags, rotate through carry, count bits, set / clear / test bits • Float mode shows the IEEE-754 bits of a double MADE FOR DAILY WORK • Hold any number to copy it — hex and binary keep their prefix • Paste into the display when the clipboard holds a number • Undo and redo every step, even an accidental AC • A tape of every calculation • bswap, wswap, clz, ctz, bitrev, maskl / maskr and more in algebraic mode • Portrait and landscape — and on iPad any window size: the calculator scales to fill it, and where there is room, every function gets a key of its own • With a keyboard on iPad or Mac: type digits, operators and prefixes, Return for ENTER, ⌘Z to undo PRIVATE BY DESIGN No account, no ads, no tracking. Rechenwerk works offline; nothing you calculate leaves your device.
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What's New in Rechenwerk

1.0.1

October 21, 2026

On iPad, and in larger windows on a Mac, every function now has a key of its own, without f — wherever there is room for it. If Rechenwerk has been useful to you for a while, it now asks once whether you’d like to rate it — never while you’re typing. Ratings help other programmers find the app.

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