# 年号電卓+ vs Simple

The clearest difference is review sentiment: Simple at 100% against 年号電卓+'s 60%. Simple also leads on iOS requirement (9.0 vs 15.6). 年号電卓+'s advantage is update cadence (every 2 weeks vs every 6 months). On price, ads, in-app purchases and monetization model 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, Simple every 6 months. The most recent releases landed on September 25, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | 年号電卓+ | Simple |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 months |
| Monetization | Free | Free |
| Size | 0 MB | 32 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SHINICHI KANEDA](https://appshunter.io/developer/1061887320) | [KENTA OKAMURA](https://appshunter.io/developer/688249455) |

## 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


### Simple

[App page](https://appshunter.io/ios/app/simple-unit-converter/id1078560641)

This application offers a straightforward tool for converting units and performing calculations. It combines both functions for user convenience, making it ideal for everyday tasks rather than highly specialized professional use.

**Highlights:** Unit conversion, Calculator functionality, Combined converter and calculator, Easy to use interface

**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 Simple free?

Simple is free to download, with no in-app purchases.

### Do 年号電卓+ or Simple have ads?

Neither 年号電卓+ nor Simple shows ads.

### Which is updated more often, 年号電卓+ or Simple?

年号電卓+ ships an update every 2 weeks, and Simple every 6 months. Most recently, 年号電卓+ was updated on September 25, 2026 and Simple on September 17, 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.*