# BBWALKER 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 BBWALKER's every 3 months. On price, review sentiment, ads and in-app purchases there is nothing between them.

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

BBWALKER ships an update every 3 months, ゼロカーボン・チャレンジ monthly. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | BBWALKER | 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 | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | — |
| Size | 45 MB | 29 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [trainspot KK](https://appshunter.io/developer/629465254) | [JAPAN ZERO CARBON SMART CITY FOUNDATION, GENERAL INC. ASSOCIATION - AXFG5J98TW](https://appshunter.io/developer/1723265776) |

## What reviewers say

### BBWALKER

[App page](https://appshunter.io/ios/app/bbwalker/id629465251)

Discover Belgian beers and breweries at the Belgian Beer Weekend in Japan. Explore detailed beer descriptions, food pairings, and an interactive venue map. Log your tasting experiences and track your preferences.

**Highlights:** Explore Belgian beers with descriptions and taste charts, Discover food vendors and beer pairings, Interactive venue floor map, Personalized beer recommendations, Log tasting experiences in My Passport, View event schedule and performances

**Features:** Vision Pro support

**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 BBWALKER free?

BBWALKER 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 BBWALKER or ゼロカーボン・チャレンジ have ads?

Neither BBWALKER nor ゼロカーボン・チャレンジ shows ads.

### Which is updated more often, BBWALKER or ゼロカーボン・チャレンジ?

BBWALKER ships an update every 3 months, and ゼロカーボン・チャレンジ monthly. Most recently, BBWALKER was updated on November 1, 2026 and ゼロカーボン・チャレンジ on November 4, 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.*