# BASIC格付けチェック vs Medaka Aquarium Breeder

The clearest difference is update cadence: Medaka Aquarium Breeder at every 11 days against BASIC格付けチェック's every 22 months. Medaka Aquarium Breeder also leads on iOS requirement (13.3 vs 15.1). 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.

BASIC格付けチェック ships an update every 22 months, Medaka Aquarium Breeder every 11 days. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | BASIC格付けチェック | Medaka Aquarium Breeder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (3 ratings)](https://appshunter.io/ios/app/medaka-aquarium-breeder/id6466660802/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 22 months | **Every 11 days** |
| Monetization | — | Ad-supported |
| Size | 26 MB | 244 MB |
| Requires iOS | 15.1 | **13.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [takeshi inoue](https://appshunter.io/developer/1452042026) | [Yuki Naruse](https://appshunter.io/developer/1707604115) |

## What reviewers say

### BASIC格付けチェック

[App page](https://appshunter.io/ios/app/basic/id1458052270)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is BASIC格付けチェック free?

BASIC格付けチェック is free to download, with no in-app purchases.

### Is Medaka Aquarium Breeder free?

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

### Do BASIC格付けチェック or Medaka Aquarium Breeder have ads?

Both BASIC格付けチェック and Medaka Aquarium Breeder show ads.

### Which is updated more often, BASIC格付けチェック or Medaka Aquarium Breeder?

BASIC格付けチェック ships an update every 22 months, and Medaka Aquarium Breeder every 11 days. Most recently, BASIC格付けチェック was updated on October 26, 2026 and Medaka Aquarium Breeder on October 30, 2026.

---

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