2 Field % Calc vs CMCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
2 Field % Calc
Calculate percentages between two numbers for various uses, including resizing images and determining magnification. Ideal for DTP and web designers needing quick calculations.
- Calculate percent between two numbers
- Image resizing by percentage
- Magnification calculation
- Useful for DTP and web designers
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Calculation of percent for two numbers. Simply you input number and Dial Percent. We are using this app for resizing image with percent. Especially for resizing to different size of image. For DTP and Web designer ! Also you can calculate magnification. ( B/A = How much bigger is it ? ) We hope that this app helps your work. Thank you!! And there is "Aspect Ratio C Calc" App. Please visit our site: http://www.4us.jp We made other apps.
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.
Screenshots
Verdict
The clearest difference is rating: CMCalc at 4.5 against 2 Field % Calc's 4.0. CMCalc also leads on ratings volume (6 vs 1) and iOS requirement (12.0 vs 15.6). 2 Field % Calc's advantage is review sentiment (100% vs 75%). On price, update cadence, ads and in-app purchases 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.
CMCalc holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: CMCalc has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 100% of 2 Field % Calc's written reviews are positive against 75% of CMCalc's, so the app with the better star average is not the one people write more warmly about.
2 Field % Calc ships an update every 30 months, CMCalc every 45 months. The most recent releases landed on October 6, 2026 and October 9, 2026 respectively.
| Parameter | 2 Field % Calc | CMCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) | 4.5 (6 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 75.0% of reviews |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 30 months — better | Every 45 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Toshihiro Nakane | William David |
Customer experience
2 Field % Calc
CMCalc
In-app purchases
2 Field % Calc
No in-app purchases
CMCalc
No in-app purchases









