# 年号電卓Plus vs Wareki

The clearest difference is price: 年号電卓Plus at Free against Wareki's $0.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

年号電卓Plus is free to download; Wareki costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

年号電卓Plus ships an update every 6 weeks, Wareki every 2 months. The most recent releases landed on July 27, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | 年号電卓Plus | Wareki |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 7 MB | 7 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Nakanishi Toshihiko](https://appshunter.io/developer/712843914) | [Yutaka Umetsu](https://appshunter.io/developer/623850482) |

## What reviewers say

### 年号電卓Plus

[App page](https://appshunter.io/ios/app/plus/id1320583340)

Easily convert between Western and Japanese eras, and determine birth years from age. Explore historical context with explanations for era changes and significant events of each year.

**Highlights:** Western to Japanese era conversion, Japanese era to Western conversion, Calculate birth year from age, View era start and end dates, Understand reasons for era changes, Discover major events of each year

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Wareki

[App page](https://appshunter.io/ios/app/wareki/id6738856496)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 年号電卓Plus free?

年号電卓Plus is free to download, with no in-app purchases.

### Is Wareki free?

Wareki costs $0.99, with no in-app purchases.

### Do 年号電卓Plus or Wareki have ads?

Neither 年号電卓Plus nor Wareki shows ads.

### Which is updated more often, 年号電卓Plus or Wareki?

年号電卓Plus ships an update every 6 weeks, and Wareki every 2 months. Most recently, 年号電卓Plus was updated on July 27, 2026 and Wareki on September 23, 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.*