KumamonCalc vs CAL_
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KumamonCalc
A straightforward calculator featuring the popular Kumamon character. It supports basic arithmetic, percentage calculations, and memory functions. Users can customize themes and toggle sound effects.
- Basic arithmetic operations
- Percentage calculation
- Memory function
- Customizable themes
- Sound ON/OFF option
- 12-digit input support
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Simple calculator famous character in Japan " Kumamon " appeared ! Corresponds to the percentage calculation arithmetic , % , it is equipped with a memory function . It is a computer that does not correspond to the function operation . It is a calculator of the calculation Kumamon addition, subtraction , multiplication , division , percentages , can be . ※ Kumamon calculator is free , but you can hide the ads by purchasing the extension plug-in . [ Main function ] - Input the number of digits to 12 digits - Support for iPad - Can change the theme Settings Sound : ON / OFF Theme : black / white / red / yellow / blue / green © 2010 kumamoto pref. Kumamon #13492
CAL_
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CAL_ is the next evolution of calculators. Made especially for iPhone, it brings the venerable calculator to an all-new level. LOG FEATURE All of your calculations are logged, so you can refer to them at any time. Use the ANS key to bring up the most recent result from the log. You can toggle commas and decimal points, and also use a guide that shows you when your units are in the millions, billions, and beyond. CURRENCY CONVERSIONS Get real-time currency rates for up to three currencies at once. You can also see a graph of currency value fluctuations. UNIT CONVERSIONS Want to know how many Tokyo Domes there are to an acre? Or how many lbs make up a stone? It's right at your fingertips in CAL_.
Screenshots
Verdict
The clearest difference is in-app purchases: CAL_ at none against KumamonCalc's 1. CAL_ also leads on ads (none vs shown) and update cadence (every 4 days vs every 3 months). On price, device support and iOS requirement 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. KumamonCalc sells 1 one-off in-app purchase. CAL_ asks for nothing beyond the download.
KumamonCalc ships an update every 3 months, CAL_ every 4 days. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.
| Parameter | KumamonCalc | CAL_ |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 50 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | woodsmall inc. | SQUAIR Inc. |
In-app purchases
KumamonCalc
- Advertising hide$4.99
CAL_
No in-app purchases









