# Medaka Aquarium Breeder vs 釣り、アクアリウムー水族館経営の世界

The clearest difference is update cadence: Medaka Aquarium Breeder at every 11 days against 釣り、アクアリウムー水族館経営の世界's every 6 months. Medaka Aquarium Breeder also leads on iOS requirement (13.3 vs 15.0). 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.

Medaka Aquarium Breeder ships an update every 11 days, 釣り、アクアリウムー水族館経営の世界 every 6 months. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Medaka Aquarium Breeder | 釣り、アクアリウムー水族館経営の世界 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/medaka-aquarium-breeder/id6466660802/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 11 days** | Every 6 months |
| Monetization | Ad-supported | — |
| Size | 244 MB | 221 MB |
| Requires iOS | **13.3** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuki Naruse](https://appshunter.io/developer/1707604115) | [Kenichi Fujii](https://appshunter.io/developer/1725932598) |

## What reviewers say

### Medaka Aquarium Breeder

[App page](https://appshunter.io/ios/app/medaka-aquarium-breeder/id6466660802)

Raise and breed killifish in a relaxing aquarium simulation. Manage water quality, feed your fish, and sell them to upgrade your tank. Discover new species and create a beautiful underwater world.

**Highlights:** Manage aquarium water quality and temperature, Feed and grow killifish, Sell fish to earn money, Breed new killifish species, Customize aquarium with equipment and layouts, Offline play available

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 釣り、アクアリウムー水族館経営の世界

[App page](https://appshunter.io/ios/app/id6476358567)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Medaka Aquarium Breeder free?

Medaka Aquarium Breeder is free to download, with no in-app purchases.

### Is 釣り、アクアリウムー水族館経営の世界 free?

釣り、アクアリウムー水族館経営の世界 is free to download, with no in-app purchases.

### Do Medaka Aquarium Breeder or 釣り、アクアリウムー水族館経営の世界 have ads?

Both Medaka Aquarium Breeder and 釣り、アクアリウムー水族館経営の世界 show ads.

### Which is updated more often, Medaka Aquarium Breeder or 釣り、アクアリウムー水族館経営の世界?

Medaka Aquarium Breeder ships an update every 11 days, and 釣り、アクアリウムー水族館経営の世界 every 6 months. Most recently, Medaka Aquarium Breeder was updated on October 7, 2026 and 釣り、アクアリウムー水族館経営の世界 on October 8, 2026.

---

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