Comparison

CMCalc vs DigiFarm Plant Trees

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

DigiFarm Plant Trees

Features
Read full description

DigiFarm is a simple and powerful tool for tracking tree planting and monitoring growth. Designed for individuals, organizations, and environmental initiatives, DigiFarm ensures every tree is accounted for — from the moment it is planted. Key Features • Track tree locations using GPS • Monitor growth and maintenance • Receive alerts when trees need attention • Manage planting projects across locations • View real-time reports and progress Built for Impact Whether you are running a tree planting campaign or managing sustainability programs, DigiFarm helps you stay organized and accountable. Track every tree. Measure real impact.

Screenshots

CMCalc4 screens
DigiFarm Plant Trees4 screens

Verdict

The call

The clearest difference is update cadence: DigiFarm Plant Trees at every 6 months against CMCalc's every 45 months. 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

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, DigiFarm Plant Trees every 6 months. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
CMCalc versus DigiFarm Plant Trees: the parameters behind the verdict, then further details
ParameterCMCalcDigiFarm Plant Trees
PriceFreeFree
Rating4.6 (7 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings7 — better—
Update frequencyEvery 45 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better13.0
Further details — not scored
Size4 MB20 MB
Age rating4+4+
DeveloperWilliam DavidEvMak Tanzania

In-app purchases

None

CMCalc

No in-app purchases

None

DigiFarm Plant Trees

No in-app purchases

Questions

Is CMCalc free?
CMCalc is free to download, with no in-app purchases.
Is DigiFarm Plant Trees free?
DigiFarm Plant Trees is free to download, with no in-app purchases.
Do CMCalc or DigiFarm Plant Trees have ads?
Neither CMCalc nor DigiFarm Plant Trees shows ads.
Which is updated more often, CMCalc or DigiFarm Plant Trees?
CMCalc ships an update every 45 months, and DigiFarm Plant Trees every 6 months. Most recently, CMCalc was updated on October 24, 2026 and DigiFarm Plant Trees on October 31, 2026.

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