Comparison

CMCalc vs Snaarp Mail

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

Snaarp Mail

Features
Read full description

Experience the next evolution of digital privacy. Snaarp Mail combines our signature high-security data vault technology with a powerful, end-to-end encrypted email system. Whether you are sending sensitive documents or chatting with your team, Snaarp ensures your data remains yours alone.

Screenshots

CMCalc4 screens
Snaarp Mail4 screens

Verdict

The call

The clearest difference is in-app purchases: CMCalc at none against Snaarp Mail's 3. CMCalc also leads on iOS requirement (12.0 vs 15.0). Snaarp Mail's advantage is update cadence (every 4 days vs every 45 months). On price, ads 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. Snaarp Mail sells 3 in-app purchases, starting at $1.49 per month. CMCalc asks for nothing beyond the download.

UpkeepUpdate frequency

CMCalc ships an update every 45 months, Snaarp Mail every 4 days. The most recent releases landed on September 7, 2026 and September 18, 2026 respectively.

Scorecard3 real differences · 7 level
CMCalc versus Snaarp Mail: the parameters behind the verdict, then further details
ParameterCMCalcSnaarp Mail
PriceFreeFree
Rating4.5 (6 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 45 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS12.0 — better15.0
Further details — not scored
Size4 MB35 MB
Age rating4+4+
DeveloperWilliam DavidSnaarp Inc

In-app purchases

None

CMCalc

No in-app purchases

3 purchases

Snaarp Mail

Subscriptions3
  • Starter$1.491 Month
  • Professional$12.001 Month
  • Business$50.001 Month

Questions

Is CMCalc free?
CMCalc is free to download, with no in-app purchases.
Is Snaarp Mail free?
Snaarp Mail is free to download, with in-app purchases available.
Do CMCalc or Snaarp Mail have ads?
Neither CMCalc nor Snaarp Mail shows ads.
Which is updated more often, CMCalc or Snaarp Mail?
CMCalc ships an update every 45 months, and Snaarp Mail every 4 days. Most recently, CMCalc was updated on September 7, 2026 and Snaarp Mail on September 18, 2026.

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