Comparison

CMCalc vs Binary Calculator SDG

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CMCalc

This app emulates a classic 1980s computer math calculator, offering decimal arithmetic, binary conversions, and logic functions. It supports parentheses for complex calculations and includes modern features like copy/paste and landscape mode.

Highlights
  • Decimal arithmetic
  • Binary conversions (decimal, binary, octal, hexadecimal)
  • Binary logic functions
  • Operator grouping with parentheses
  • Hexadecimal input (A-F)
  • Copy and paste results/functions
  • Landscape mode
Features
Read full description

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.

About

Binary Calculator SDG

Features
Read full description

The binary calculator is a powerful tool that allows users to easily add, subtract, divide, and multiply binary numbers, making complex calculations fast and efficient.

Screenshots

CMCalc4 screens
Binary Calculator SDG4 screens

Verdict

The call

The clearest difference is ads: CMCalc at none against Binary Calculator SDG's shown. Binary Calculator SDG's advantage is update cadence (every 12 months vs every 45 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

CMCalc ships an update every 45 months, Binary Calculator SDG every 12 months. The most recent releases landed on September 22, 2026 and September 14, 2026 respectively.

Scorecard2 real differences · 8 level
CMCalc versus Binary Calculator SDG: the parameters behind the verdict, then further details
ParameterCMCalcBinary Calculator SDG
PriceFreeFree
Rating4.5 (6 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 45 monthsEvery 12 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.011.0 — better
Further details — not scored
Size4 MB12 MB
Age rating4+4+
DeveloperWilliam DavidSDG CODE DOO NIS

In-app purchases

None

CMCalc

No in-app purchases

None

Binary Calculator SDG

No in-app purchases

Questions

Is CMCalc free?
CMCalc is free to download, with no in-app purchases.
Is Binary Calculator SDG free?
Binary Calculator SDG is free to download, with no in-app purchases.
Do CMCalc or Binary Calculator SDG have ads?
Binary Calculator SDG shows ads; CMCalc does not.
Which is updated more often, CMCalc or Binary Calculator SDG?
CMCalc ships an update every 45 months, and Binary Calculator SDG every 12 months. Most recently, CMCalc was updated on September 22, 2026 and Binary Calculator SDG on September 14, 2026.

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