# IllustrationVisionTraining vs さんすう水族館

The clearest difference is in-app purchases: IllustrationVisionTraining at none against さんすう水族館's 12. IllustrationVisionTraining also leads on iOS requirement (12.0 vs 17.0). さんすう水族館's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. さんすう水族館 sells 12 in-app purchases, starting at $1.99 per month. IllustrationVisionTraining asks for nothing beyond the download.

IllustrationVisionTraining ships an update every 3 weeks, さんすう水族館 every 10 days. The most recent releases landed on October 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | IllustrationVisionTraining | さんすう水族館 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Size | 67 MB | 32 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [kenta yamada](https://appshunter.io/developer/1698424335) | [Kosuke Mawatari](https://appshunter.io/developer/1489564137) |

## What reviewers say

### IllustrationVisionTraining

[App page](https://appshunter.io/ios/app/illustrationvisiontraining/id6471545108)

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

**In-app purchases:** none


### さんすう水族館

[App page](https://appshunter.io/ios/app/id6796571918)

**Features:** macOS Compatibility

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| すべての単元 遊び放題(月額) | $1.99 | per month |
| すべての単元 遊び放題(年額) | $19.99 | per year |
| −1の ひきざん ぜんぶあそぶ | $0.99 | one-time |
| かけざんの きほん ぜんぶあそぶ | $0.99 | one-time |
| かずの せん ぜんぶあそぶ | $0.99 | one-time |
| はじめての たしざん ぜんぶあそぶ | $0.99 | one-time |
| 3けたのかず ぜんぶあそぶ | $0.99 | one-time |
| かずをかぞえる1〜10まで ぜんぶあそぶ | $0.99 | one-time |
| かずをかぞえる10〜20まで ぜんぶあそぶ | $0.99 | one-time |
| 1けたのけいさん ぜんぶあそぶ | $0.99 | one-time |
| とけい・じこくとじかん ぜんぶあそぶ | $0.99 | one-time |
| おかいもの・おつり100円と200円 ぜんぶあそぶ | $0.99 | one-time |


## Frequently asked questions

### Is IllustrationVisionTraining free?

IllustrationVisionTraining is free to download, with no in-app purchases.

### Is さんすう水族館 free?

さんすう水族館 is free to download, with in-app purchases available.

### Do IllustrationVisionTraining or さんすう水族館 have ads?

IllustrationVisionTraining shows ads; さんすう水族館 does not.

### Which is updated more often, IllustrationVisionTraining or さんすう水族館?

IllustrationVisionTraining ships an update every 3 weeks, and さんすう水族館 every 10 days. Most recently, IllustrationVisionTraining was updated on October 6, 2026 and さんすう水族館 on October 31, 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.*