# Calc+α vs 和暦ウォッチ

The clearest difference is ads: 和暦ウォッチ at none against Calc+α's shown. 和暦ウォッチ also leads on update cadence (every 4 days vs every 3 weeks) and device support (3 vs 1). On price 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+α ships an update every 3 weeks, 和暦ウォッチ every 4 days. The most recent releases landed on July 27, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Calc+α | 和暦ウォッチ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Ad-supported | — |
| Size | 9 MB | 3 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Ariane Inc.](https://appshunter.io/developer/449595295) | [Yutaro Yoshizawa](https://appshunter.io/developer/1528001085) |

## What reviewers say

### Calc+α

[App page](https://appshunter.io/ios/app/calc-plus/id1454376672)

This utility app simplifies daily calculations with an intuitive interface. It features a history of your calculations, allows for easy editing and recalculation, and provides convenient tax and division functions. Organize your finances and avoid manual note-taking.

**Highlights:** Calculation history and review, Edit past calculations and recalculate, Tax-inclusive and exclusive calculation modes, Standard and reduced tax rate switching, Clear division and remainder display, Create and copy calculation sheets

**In-app purchases:** none


### 和暦ウォッチ

[App page](https://appshunter.io/ios/app/id6739359101)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Calc+α free?

Calc+α is free to download, with no in-app purchases.

### Is 和暦ウォッチ free?

和暦ウォッチ is free to download, with no in-app purchases.

### Do Calc+α or 和暦ウォッチ have ads?

Calc+α shows ads; 和暦ウォッチ does not.

### Which is updated more often, Calc+α or 和暦ウォッチ?

Calc+α ships an update every 3 weeks, and 和暦ウォッチ every 4 days. Most recently, Calc+α was updated on July 27, 2026 and 和暦ウォッチ on September 28, 2026.

---

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