# Unit Converter Max vs シンプル単位変換

The clearest difference is in-app purchases: シンプル単位変換 at none against Unit Converter Max's 1. シンプル単位変換 also leads on update cadence (weekly vs every 3 weeks). Unit Converter Max's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Unit Converter Max sells 1 one-off in-app purchase. シンプル単位変換 asks for nothing beyond the download.

Unit Converter Max ships an update every 3 weeks, シンプル単位変換 weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Unit Converter Max | シンプル単位変換 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (26 ratings)](https://appshunter.io/ios/app/unit-converter-max/id6747881604/reviews)** | — |
| Number of ratings | **26** | — |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 36 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Rich Soft Co., Ltd](https://appshunter.io/developer/1499019813) | [Searial, Inc.](https://appshunter.io/developer/1875914396) |

## What reviewers say

### Unit Converter Max

[App page](https://appshunter.io/ios/app/unit-converter-max/id6747881604)

This app offers fast and accurate conversions for over 30 unit categories and 150 world currencies. It features a clean interface, offline functionality, and light/dark modes, designed for travel, work, and everyday calculations.

**Highlights:** 30+ unit categories, 150+ world currencies, Offline unit conversion, Clean, easy-to-read interface, Light and dark mode, Fast and accurate results

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Converter Lifetime | $4.99 | one-time |


### シンプル単位変換

[App page](https://appshunter.io/ios/app/id6787664726)

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

**In-app purchases:** none


## Frequently asked questions

### Is Unit Converter Max free?

Unit Converter Max is free to download, with in-app purchases available.

### Is シンプル単位変換 free?

シンプル単位変換 is free to download, with no in-app purchases.

### Do Unit Converter Max or シンプル単位変換 have ads?

シンプル単位変換 shows ads; Unit Converter Max does not.

### Which is updated more often, Unit Converter Max or シンプル単位変換?

Unit Converter Max ships an update every 3 weeks, and シンプル単位変換 weekly. Most recently, Unit Converter Max was updated on October 30, 2026 and シンプル単位変換 on October 31, 2026.

---

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