CMCalc vs Geo Logger GPX
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.
Geo Logger GPX
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If you want to record your location during a photo shoot or trip, use Geo Logger. All locations are organized into tracks and stored on your smartphone, and no internet connection is required. Stored tracks can be extracted as GPX, KML files or sent by email at any time. Geo Logger runs in the background and uses delayed updates to minimize battery consumption. If you choose a longer logging cycle, the battery will last longer.
Screenshots
Verdict
The clearest difference is in-app purchases: CMCalc at none against Geo Logger GPX's 1. CMCalc also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.6). Geo Logger GPX's advantage is update cadence (every 3 days vs every 45 months). On price 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. Geo Logger GPX sells 1 one-off in-app purchase. CMCalc asks for nothing beyond the download.
CMCalc ships an update every 45 months, Geo Logger GPX every 3 days. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.
| Parameter | CMCalc | Geo Logger GPX |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (7 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 45 months | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 4 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | William David | Land Analysis Lab |
In-app purchases
CMCalc
No in-app purchases
Geo Logger GPX
- Remove Ads$6.99









