# 空想水族館 vs しぇるぱか

The clearest difference is rating: 空想水族館 at 4.9 against しぇるぱか's 4.5. 空想水族館 also leads on ratings volume (8 vs 2) and iOS requirement (12.0 vs 14.0). On price, review sentiment, update cadence and ads there is nothing between them.

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

空想水族館 holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 8 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

空想水族館 ships an update every 2 months, しぇるぱか every 6 weeks. Both last shipped on October 27, 2026.

## The numbers

| Metric | 空想水族館 | しぇるぱか |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (8 ratings)](https://appshunter.io/ios/app/id6443890302/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/id6569232921/reviews) |
| Number of ratings | **8** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Ad-supported | — |
| Size | 395 MB | 98 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [ArtsPlanet](https://appshunter.io/developer/661686993) | [GlobalGear Co. Ltd.](https://appshunter.io/developer/670168140) |

## What reviewers say

### 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


### しぇるぱか

[App page](https://appshunter.io/ios/app/id6569232921)

**In-app purchases:** none


## Frequently asked questions

### Is 空想水族館 free?

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

### Is しぇるぱか free?

しぇるぱか is free to download, with no in-app purchases.

### Which has better reviews, 空想水族館 or しぇるぱか?

空想水族館 is rated higher. 空想水族館 averages 4.9 out of 5 from 8 ratings, while しぇるぱか averages 4.5 from 2 ratings.

### Do 空想水族館 or しぇるぱか have ads?

Both 空想水族館 and しぇるぱか show ads.

### Which is updated more often, 空想水族館 or しぇるぱか?

空想水族館 ships an update every 2 months, and しぇるぱか every 6 weeks. Most recently, 空想水族館 was updated on October 27, 2026 and しぇるぱか on October 27, 2026.

---

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