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

The clearest difference is ads: Medaka Breeder at none against 釣り、アクアリウムー水族館経営の世界's shown. Medaka Breeder also leads on update cadence (every 5 days vs every 6 months) and iOS requirement (12.0 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.

Medaka Breeder ships an update every 5 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 24, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Medaka Breeder | 釣り、アクアリウムー水族館経営の世界 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (17 ratings)](https://appshunter.io/ios/app/medaka-breeder/id6453882680/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 91 MB | 221 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Taiho Yanase](https://appshunter.io/developer/1699588464) | [Kenichi Fujii](https://appshunter.io/developer/1725932598) |

## What reviewers say

### Medaka Breeder

[App page](https://appshunter.io/ios/app/medaka-breeder/id6453882680)

Experience realistic fish keeping by feeding and cleaning your virtual fish. Watch them grow, breed, and inherit traits from their parents. Customize aquariums and collect various fish species.

**Highlights:** Realistic killifish keeping simulation, Breed fish and inherit traits, Customize aquariums with decorations, Collect over 46 types of killifish, Missions and rewards system, Observation and shooting modes

**Features:** macOS Compatibility

**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 Breeder free?

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

釣り、アクアリウムー水族館経営の世界 shows ads; Medaka Breeder does not.

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

Medaka Breeder ships an update every 5 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 Breeder was updated on October 24, 2026 and 釣り、アクアリウムー水族館経営の世界 on October 8, 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.*