# HISモバイルアプリ vs ゼロカーボン・チャレンジ

The clearest difference is update cadence: ゼロカーボン・チャレンジ at monthly against HISモバイルアプリ's every 39 months. 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.

HISモバイルアプリ ships an update every 39 months, ゼロカーボン・チャレンジ monthly. The most recent releases landed on September 9, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | HISモバイルアプリ | ゼロカーボン・チャレンジ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/id6475059135/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Monthly** |
| Size | 26 MB | 29 MB |
| Requires iOS | 16.1.1 | **15.6** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [HIS Mobile Co., Ltd.](https://appshunter.io/developer/1445529223) | [JAPAN ZERO CARBON SMART CITY FOUNDATION, GENERAL INC. ASSOCIATION - AXFG5J98TW](https://appshunter.io/developer/1723265776) |

## What reviewers say

### HISモバイルアプリ

[App page](https://appshunter.io/ios/app/his/id1668039167)

**Features:** macOS Compatibility

**In-app purchases:** none


### ゼロカーボン・チャレンジ

[App page](https://appshunter.io/ios/app/id6475059135)

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

**In-app purchases:** none


## Frequently asked questions

### Is HISモバイルアプリ free?

HISモバイルアプリ is free to download, with no in-app purchases.

### Is ゼロカーボン・チャレンジ free?

ゼロカーボン・チャレンジ is free to download, with no in-app purchases.

### Do HISモバイルアプリ or ゼロカーボン・チャレンジ have ads?

Neither HISモバイルアプリ nor ゼロカーボン・チャレンジ shows ads.

### Which is updated more often, HISモバイルアプリ or ゼロカーボン・チャレンジ?

HISモバイルアプリ ships an update every 39 months, and ゼロカーボン・チャレンジ monthly. Most recently, HISモバイルアプリ was updated on September 9, 2026 and ゼロカーボン・チャレンジ on September 14, 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.*