# Japan vs Cocomo

The clearest difference is in-app purchases: Cocomo at none against Japan's 1. Cocomo also leads on ads (none vs shown). Japan's advantage is iOS requirement (16.2 vs 18.6). On price, update cadence and device support there is nothing between them.

Both are free to download. Japan sells 1 one-off in-app purchase. Cocomo asks for nothing beyond the download.

Japan ships an update weekly, Cocomo every 2 weeks. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Japan | Cocomo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (18 ratings)](https://appshunter.io/ios/app/japan-us-unit-conversion/id6450624167/reviews)** | — |
| Number of ratings | **18** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 5 MB |
| Requires iOS | **16.2** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Koya Nambo](https://appshunter.io/developer/1633778504) | [Toshihiro Nakao](https://appshunter.io/developer/1866546756) |

## What reviewers say

### Japan

[App page](https://appshunter.io/ios/app/japan-us-unit-conversion/id6450624167)

Easily convert between Japanese and US units for length, weight, speed, volume, temperature, area, currency, and time zones. This tool is useful for travel, daily life, work, and study, offering a wide range of conversion categories.

**Highlights:** Length conversion, Weight conversion, Speed conversion, Volume conversion, Temperature conversion, Area conversion, Currency conversion, Timezone conversion

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $3.99 | one-time |


### Cocomo

[App page](https://appshunter.io/ios/app/cocomo/id6765533632)

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

**In-app purchases:** none


## Frequently asked questions

### Is Japan free?

Japan is free to download, with in-app purchases available.

### Is Cocomo free?

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

### Do Japan or Cocomo have ads?

Japan shows ads; Cocomo does not.

### Which is updated more often, Japan or Cocomo?

Japan ships an update weekly, and Cocomo every 2 weeks. Most recently, Japan was updated on October 13, 2026 and Cocomo on October 5, 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.*