CMCalc vs Geocene
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.
Geocene
Interact with Geocene Dots by starting and stopping missions, downloading data, and viewing or editing mission details. This utility app allows for comprehensive management of your Geocene Dot interactions.
- Interact with Geocene Dots
- Start and stop missions
- Download mission data
- View mission data
- Edit mission data
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Use the Geocene application to interact with Geocene Dots. You can use the application to start and stop missions, download data, and view and edit mission data.
Screenshots
Verdict
The clearest difference is rating: Geocene at 5.0 against CMCalc's 4.5. Geocene also leads on update cadence (every 5 weeks vs every 45 months) and review sentiment (100% vs 75%). CMCalc's advantage is ratings volume (6 vs 2). On price, ads, in-app purchases and monetization model 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.
Geocene holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 6 and 2 respectively. Written reviews point the same way: 75% of CMCalc's written reviews are positive against 100% of Geocene's.
CMCalc ships an update every 45 months, Geocene every 5 weeks. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.
| Parameter | CMCalc | Geocene |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (6 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 75.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 6 — better | 2 |
| Update frequency | Every 45 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 4 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | William David | Geocene Inc. |
Customer experience
CMCalc
Geocene
In-app purchases
CMCalc
No in-app purchases
Geocene
No in-app purchases
