KumamonCalc vs Lunadar
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
Lunadar
Explore and manage time using a lunar calendar with this intuitive app. It offers detailed lunar date information, including month lengths, and allows for easy event management based on lunar cycles. Experience a unique approach to timekeeping on your iOS device.
- Lunar calendar exploration
- Detailed lunar date information
- Lunar month length display
- Event management based on lunar cycle
- Intuitive user interface
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Lunadar is the perfect companion for you to explore and manage time according to the lunar calendar conveniently and accurately. With a simple and intuitive interface, Lunadar provides detailed information about lunar dates, including the number of days in each lunar month. Easily add and manage your important events based on the lunar cycle right on your iOS device. Discover Lunadar today and experience this unique utility!
Screenshots
Verdict
The clearest difference is in-app purchases: Lunadar at none against KumamonCalc's 1. Lunadar also leads on ads (none vs shown) and update cadence (daily vs every 3 months). KumamonCalc's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, rating and ratings volume 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. Lunadar asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for KumamonCalc against 5.0 for Lunadar. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
KumamonCalc ships an update every 3 months, Lunadar daily. The most recent releases landed on October 23, 2026 and October 6, 2026 respectively.
| Parameter | KumamonCalc | Lunadar |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 3 months | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 50 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | woodsmall inc. | Huy Ta |
Customer experience
KumamonCalc
Lunadar
In-app purchases
KumamonCalc
- Advertising hide$4.99
Lunadar
No in-app purchases
