CMCalc vs Triangle Help
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.
Triangle Help
This utility app calculates missing sides and angles of a triangle given at least three known measures. It displays the formulas used for learning and supports angle input in degrees or radians, with adjustable decimal precision.
- Solves for missing triangle sides and angles
- Displays formulas used for learning
- Accepts angles in degrees or radians
- Adjustable decimal precision
- Large text display
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Triangle Solver! FEATURES INCLUDE - Presents the formulae it uses - Accepts angles in degrees OR radians - Reports answers to many decimal places - BIG TEXT To toggle between degrees and radians simply tap the blue angle unit symbol. Given three measures of sides or angles of a triangle (including at least one side) this app can find and report the rest. This app "solves" triangles. This app's most special feature is that it reports the formulae it uses so you can learn how to solve triangles yourself. The number of decimal places is determined by the width of your screen. If it's too few, turn your device horizontal! Each side is across from the angle of the same letter. Sides are lowercase, angles are uppercase and denoted with the angle symbol (∠). This app may be good for engineers or Trigonometry students.
Screenshots
Verdict
The clearest difference is review sentiment: CMCalc at 67% against Triangle Help's 0%. CMCalc also leads on ratings volume (7 vs 1). Triangle Help's advantage is rating (5.0 vs 4.6) and iOS requirement (9.3 vs 12.0). 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.
Triangle Help holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: CMCalc has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 67% of CMCalc's written reviews are positive against 0% of Triangle Help's, so the app with the better star average is not the one people write more warmly about.
| Parameter | CMCalc | Triangle Help |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (7 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 66.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 7 — better | 1 |
| Update frequency | Every 45 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 | 9.3 — better |
| Further details — not scored | ||
| Size | 4 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | William David | Robert Winkelman |
Customer experience
CMCalc
Triangle Help
In-app purchases
CMCalc
No in-app purchases
Triangle Help
No in-app purchases









