# Earth Robo. vs 世界人口電卓

The clearest difference is ads: 世界人口電卓 at none against Earth Robo.'s shown. 世界人口電卓 also leads on update cadence (every 3 days vs every 7 months) and iOS requirement (13.0 vs 15.0). On price, 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.

Earth Robo. ships an update every 7 months, 世界人口電卓 every 3 days. The most recent releases landed on October 26, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Earth Robo. | 世界人口電卓 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 3 days** |
| Size | 60 MB | 5 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MASAHIRO MIZUTANI](https://appshunter.io/developer/368158224) | [HANAUTA INC.](https://appshunter.io/developer/492009717) |

## What reviewers say

### Earth Robo.

[App page](https://appshunter.io/ios/app/earth-robo/id683888321)

**Features:** Vision Pro support

**In-app purchases:** none


### 世界人口電卓

[App page](https://appshunter.io/ios/app/id6444753498)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Earth Robo. free?

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

### Is 世界人口電卓 free?

世界人口電卓 is free to download, with no in-app purchases.

### Do Earth Robo. or 世界人口電卓 have ads?

Earth Robo. shows ads; 世界人口電卓 does not.

### Which is updated more often, Earth Robo. or 世界人口電卓?

Earth Robo. ships an update every 7 months, and 世界人口電卓 every 3 days. Most recently, Earth Robo. was updated on October 26, 2026 and 世界人口電卓 on October 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*