# 年号電卓+ vs イマイドライビングサポート

The clearest difference is update cadence: 年号電卓+ at every 2 weeks against イマイドライビングサポート's every 5 months. イマイドライビングサポート's advantage is iOS requirement (11.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

年号電卓+ ships an update every 2 weeks, イマイドライビングサポート every 5 months. The most recent releases landed on October 11, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 年号電卓+ | イマイドライビングサポート |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 months |
| Monetization | Free | — |
| Size | 0 MB | 21 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SHINICHI KANEDA](https://appshunter.io/developer/1061887320) | [株式会社イマイ](https://appshunter.io/developer/1463920685) |

## What reviewers say

### 年号電卓+

[App page](https://appshunter.io/ios/app/plus/id1061887321)

This calculator-style app allows you to easily convert between Japanese eras and Western years, and calculate ages. Input a year or age to see the corresponding era and Western year, accommodating birth month and day flexibility. You can also customize era keys for quick access.

**Highlights:** Era to Western year conversion, Western year to era conversion, Age calculation, Flexible birth date handling, Customizable era keys

**Features:** macOS Compatibility

**In-app purchases:** none


### イマイドライビングサポート

[App page](https://appshunter.io/ios/app/id1463920686)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 年号電卓+ free?

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

### Is イマイドライビングサポート free?

イマイドライビングサポート is free to download, with no in-app purchases.

### Do 年号電卓+ or イマイドライビングサポート have ads?

Neither 年号電卓+ nor イマイドライビングサポート shows ads.

### Which is updated more often, 年号電卓+ or イマイドライビングサポート?

年号電卓+ ships an update every 2 weeks, and イマイドライビングサポート every 5 months. Most recently, 年号電卓+ was updated on October 11, 2026 and イマイドライビングサポート on October 13, 2026.

---

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