# もちこね vs 空想水族館

もちこね and 空想水族館 both sit at 4.8 stars, but that hides the real split: 100% of 空想水族館's written reviews are positive against 89% of もちこね's. 空想水族館 also leads on iOS requirement (12.0 vs 15.0). On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.8 for もちこね against 4.9 for 空想水族館. Both are backed by a comparable volume of ratings — 17 and 8 respectively. Written reviews are what separate them: 89% of もちこね's written reviews are positive against 100% of 空想水族館's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 20, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | もちこね | 空想水族館 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (17 ratings)](https://appshunter.io/ios/app/id1506701268/reviews) | **[4.9 (8 ratings)](https://appshunter.io/ios/app/id6443890302/reviews)** |
| Number of ratings | **17** | 8 |
| Positive reviews | 88.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | — | Ad-supported |
| Size | 132 MB | 395 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [GlobalGear Co. Ltd.](https://appshunter.io/developer/670168140) | [ArtsPlanet](https://appshunter.io/developer/661686993) |

## What reviewers say

### もちこね

[App page](https://appshunter.io/ios/app/id1506701268)

**In-app purchases:** none


### 空想水族館

[App page](https://appshunter.io/ios/app/id6443890302)

Discover a futuristic aquarium filled with whimsical creatures. Collect unique animal hybrids through a free gacha system and uncover the aquarium's secrets in a fun, story-driven game. Enjoy simple, casual gameplay perfect for passing the time.

**Highlights:** Collect unique hybrid creatures, Free gacha system, Futuristic aquarium setting, Story-driven gameplay, Tilt sensor mechanics, Casual time-killing game

**In-app purchases:** none


## Frequently asked questions

### Is もちこね free?

もちこね is free to download, with no in-app purchases.

### Is 空想水族館 free?

空想水族館 is free to download, with no in-app purchases.

### Which has better reviews, もちこね or 空想水族館?

空想水族館 is rated higher. もちこね averages 4.8 out of 5 from 17 ratings, while 空想水族館 averages 4.9 from 8 ratings.

### Do もちこね or 空想水族館 have ads?

Both もちこね and 空想水族館 show ads.

### Which is updated more often, もちこね or 空想水族館?

もちこね ships an update every 2 months, and 空想水族館 every 2 months. Most recently, もちこね was updated on October 20, 2026 and 空想水族館 on October 18, 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.*