# dozo（ドーゾ） vs I AM GREENER

The clearest difference is update cadence: dozo（ドーゾ） at weekly against I AM GREENER's every 8 months. dozo（ドーゾ） also leads on 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.

dozo（ドーゾ） ships an update weekly, I AM GREENER every 8 months. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | dozo（ドーゾ） | I AM GREENER |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Every 8 months |
| Size | 23 MB | 71 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [NEWPEACE Inc](https://appshunter.io/developer/1769934398) | [REWIND Co., Ltd.](https://appshunter.io/developer/1685775416) |

## What reviewers say

### dozo（ドーゾ）

[App page](https://appshunter.io/ios/app/dozo/id6708591529)

**Features:** macOS Compatibility

**In-app purchases:** none


### I AM GREENER

[App page](https://appshunter.io/ios/app/i-am-greener/id6743145583)

**In-app purchases:** none


## Frequently asked questions

### Is dozo（ドーゾ） free?

dozo（ドーゾ） is free to download, with no in-app purchases.

### Is I AM GREENER free?

I AM GREENER is free to download, with no in-app purchases.

### Do dozo（ドーゾ） or I AM GREENER have ads?

Both dozo（ドーゾ） and I AM GREENER show ads.

### Which is updated more often, dozo（ドーゾ） or I AM GREENER?

dozo（ドーゾ） ships an update weekly, and I AM GREENER every 8 months. Most recently, dozo（ドーゾ） was updated on October 25, 2026 and I AM GREENER on October 28, 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.*