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Screenshots

  • CMCalc screenshot 1
  • CMCalc screenshot 2
  • CMCalc screenshot 3
  • CMCalc screenshot 4

About CMCalc

The CMCalc application is a replica of the Casio CM-100 Computer Math Calc solar powered calculator that was sold in the mid 1980’s. It performs simple decimal arithmetic and basic binary conversions (decimal - binary - octal - hexadecimal) and binary logic functions. While it is a standard infix calculator, it supports operator grouping with parentheses. For hexadecimal calculations, the input keys include A through F. CMCalc application performs all the same functions as the calculator, and has the same look as the original. There are a couple features that were not conceivable in the 1980’s on a calculator … such as the ability to copy and paste the results or the entered function, and a landscape mode for devices with 4 inch or larger screens. The face of the calculator can be viewed in two modes including a traditional application style, and a photo replica of the original calculator face.

Ratings & reviews

4.6

7 ratings

5 ★ 71% 4 ★ 14% 3 ★ 14% 2 ★ 0% 1 ★ 0%

What’s new

Version 1.3 · Updated February 13, 2026

Version 1.3 of CMCalc introduces support for hardware keyboards. The primary display font was redesigned to more closely resemble that of the original calculator. Pressed buttons now flash in all views.

App privacy

The developer, William David, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

Alternatives to CMCalc

Looking for apps like CMCalc? Here are 6 similar apps on the App Store. The highest rated is StudentLite (4.8/5), and 5 of the 6 are free to download.

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