# JAXAといっしょに月探査 vs AVATARIUM（アバタリウム）

JAXAといっしょに月探査 and AVATARIUM（アバタリウム） are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

JAXAといっしょに月探査 ships an update fortnightly, AVATARIUM（アバタリウム） every 10 days. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | JAXAといっしょに月探査 | AVATARIUM（アバタリウム） |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 10 days** |
| Size | 589 MB | 229 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BBmedia inc.](https://appshunter.io/developer/401547776) | [PocketRD Inc.](https://appshunter.io/developer/1553869278) |

## What reviewers say

### JAXAといっしょに月探査

[App page](https://appshunter.io/ios/app/jaxa/id1504037502)

**In-app purchases:** none


### AVATARIUM（アバタリウム）

[App page](https://appshunter.io/ios/app/avatarium/id1553869276)

**In-app purchases:** none


## Frequently asked questions

### Is JAXAといっしょに月探査 free?

JAXAといっしょに月探査 is free to download, with no in-app purchases.

### Is AVATARIUM（アバタリウム） free?

AVATARIUM（アバタリウム） is free to download, with no in-app purchases.

### Do JAXAといっしょに月探査 or AVATARIUM（アバタリウム） have ads?

Neither JAXAといっしょに月探査 nor AVATARIUM（アバタリウム） shows ads.

### Which is updated more often, JAXAといっしょに月探査 or AVATARIUM（アバタリウム）?

JAXAといっしょに月探査 ships an update fortnightly, and AVATARIUM（アバタリウム） every 10 days. Most recently, JAXAといっしょに月探査 was updated on October 3, 2026 and AVATARIUM（アバタリウム） on October 12, 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.*