# CALC for JPN vs どーれかな？（意思決定版）

The clearest difference is device support: CALC for JPN at 3 against どーれかな？（意思決定版）'s 1. CALC for JPN also leads on iOS requirement (11.3 vs 17.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CALC for JPN ships an update every 7 months, どーれかな？（意思決定版） every 10 months. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | CALC for JPN | どーれかな？（意思決定版） |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/calc-for-jpn/id1057415147/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 10 months |
| Monetization | Free | — |
| Size | 10 MB | 24 MB |
| Requires iOS | **11.3** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kensuke Tsuzuki](https://appshunter.io/developer/805504880) | [Kouichi INAFUKU](https://appshunter.io/developer/438372899) |

## What reviewers say

### CALC for JPN

[App page](https://appshunter.io/ios/app/calc-for-jpn/id1057415147)

This calculator app helps users easily read large numbers and currency amounts by using four-digit comma separation. It also provides pronunciations for numbers in Japanese (hiragana, romaji, kanji) and English (US/UK), aiding language learners and anyone struggling with large figures.

**Highlights:** Four-digit comma separation for readability, Number pronunciation in Japanese (hiragana, romaji, kanji), Number pronunciation in English (US/UK), Copy and paste results, Standard calculator functions, Customizable tax rate

**Features:** macOS Compatibility

**In-app purchases:** none


### どーれかな？（意思決定版）

[App page](https://appshunter.io/ios/app/id1439908031)

**In-app purchases:** none


## Frequently asked questions

### Is CALC for JPN free?

CALC for JPN is free to download, with no in-app purchases.

### Is どーれかな？（意思決定版） free?

どーれかな？（意思決定版） is free to download, with no in-app purchases.

### Do CALC for JPN or どーれかな？（意思決定版） have ads?

Neither CALC for JPN nor どーれかな？（意思決定版） shows ads.

### Which is updated more often, CALC for JPN or どーれかな？（意思決定版）?

CALC for JPN ships an update every 7 months, and どーれかな？（意思決定版） every 10 months. Most recently, CALC for JPN was updated on November 2, 2026 and どーれかな？（意思決定版） on November 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*