# ZERO【RUSH/岡野/裏横２階】 vs AZ山梨サーキット

The clearest difference is update cadence: AZ山梨サーキット at every 4 months against ZERO【RUSH/岡野/裏横２階】's every 9 months. ZERO【RUSH/岡野/裏横２階】's advantage is iOS requirement (12.0 vs 14.0). 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.

ZERO【RUSH/岡野/裏横２階】 ships an update every 9 months, AZ山梨サーキット every 4 months. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | ZERO【RUSH/岡野/裏横２階】 | AZ山梨サーキット |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 months** |
| Size | 85 MB | 93 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ZERO Co., Ltd. (YOKOHAMA)](https://appshunter.io/developer/1606286901) | [SCRATCH , Y.K.](https://appshunter.io/developer/1859905698) |

## What reviewers say

### ZERO【RUSH/岡野/裏横２階】

[App page](https://appshunter.io/ios/app/zerorush/id6478095668)

**In-app purchases:** none


### AZ山梨サーキット

[App page](https://appshunter.io/ios/app/az/id6756293346)

**In-app purchases:** none


## Frequently asked questions

### Is ZERO【RUSH/岡野/裏横２階】 free?

ZERO【RUSH/岡野/裏横２階】 is free to download, with no in-app purchases.

### Is AZ山梨サーキット free?

AZ山梨サーキット is free to download, with no in-app purchases.

### Do ZERO【RUSH/岡野/裏横２階】 or AZ山梨サーキット have ads?

Neither ZERO【RUSH/岡野/裏横２階】 nor AZ山梨サーキット shows ads.

### Which is updated more often, ZERO【RUSH/岡野/裏横２階】 or AZ山梨サーキット?

ZERO【RUSH/岡野/裏横２階】 ships an update every 9 months, and AZ山梨サーキット every 4 months. Most recently, ZERO【RUSH/岡野/裏横２階】 was updated on October 7, 2026 and AZ山梨サーキット on October 2, 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.*