CMCalc vs Piktronik
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Piktronik
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Piktronik App is your all-in-one tool for managing and monitoring your electric boat in real time. Whether you're out on the water or checking in remotely, stay connected with your boat's vital systems through an intuitive, easy-to-use interface. Key Features: • Monitor boat performance: Stay informed with real-time data and performance metrics. • Track boat status: Instantly know if your boat is Charging, Driving, Idle, or Sleeping. • AUX Toggle Management: Control auxiliary systems directly from your phone. • Customize your experience: Personalize the dashboard to suit your preferences. • Up-to-date information: Always see the latest system updates and notifications. • Visualize progress: Clear and engaging displays of your boat's performance history. • Track, analyze, and monitor in real time: Keep complete control at your fingertips. Whether you're a leisure boater or a professional, Piktronik App makes managing your electric boat smarter, simpler, and more reliable than ever before.
Screenshots
Verdict
The clearest difference is update cadence: Piktronik at every 6 months against CMCalc's every 45 months. CMCalc's advantage is iOS requirement (12.0 vs 16.0). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CMCalc ships an update every 45 months, Piktronik every 6 months. The most recent releases landed on September 7, 2026 and September 11, 2026 respectively.
| Parameter | CMCalc | Piktronik |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (6 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 45 months | Every 6 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 4 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | William David | Piktronik d.o.o. |
In-app purchases
CMCalc
No in-app purchases
Piktronik
No in-app purchases









