Comparison

CMCalc vs Geo Logger GPX

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

Geo Logger GPX

Features
Read full description

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

CMCalc4 screens
Geo Logger GPX4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Geo Logger GPX sells 1 one-off in-app purchase. CMCalc asks for nothing beyond the download.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
CMCalc versus Geo Logger GPX: the parameters behind the verdict, then further details
ParameterCMCalcGeo Logger GPX
PriceFreeFree
Rating4.6 (7 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings7 — better—
Update frequencyEvery 45 monthsEvery 3 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.6
Further details — not scored
Size4 MB48 MB
Age rating4+4+
DeveloperWilliam DavidLand Analysis Lab

In-app purchases

None

CMCalc

No in-app purchases

1 purchases

Geo Logger GPX

One-time1
  • Remove Ads$6.99

Questions

Is CMCalc free?
CMCalc is free to download, with no in-app purchases.
Is Geo Logger GPX free?
Geo Logger GPX is free to download, with in-app purchases available.
Do CMCalc or Geo Logger GPX have ads?
Geo Logger GPX shows ads; CMCalc does not.
Which is updated more often, CMCalc or Geo Logger GPX?
CMCalc ships an update every 45 months, and Geo Logger GPX every 3 days. Most recently, CMCalc was updated on November 3, 2026 and Geo Logger GPX on October 28, 2026.

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