# カードで倫理｜アシストシステム vs J.Sugarの音感トレーニング

The clearest difference is ads: J.Sugarの音感トレーニング at none against カードで倫理｜アシストシステム's shown. カードで倫理｜アシストシステム's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. カードで倫理｜アシストシステム sells 1 one-off in-app purchase and J.Sugarの音感トレーニング sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

カードで倫理｜アシストシステム ships an update fortnightly, J.Sugarの音感トレーニング every 9 days. The most recent releases landed on November 4, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | カードで倫理｜アシストシステム | J.Sugarの音感トレーニング |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 9 days** |
| Size | 253 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tsuyoshi Hayakawa](https://appshunter.io/developer/314516929) | [SATO JIN](https://appshunter.io/developer/6777597123) |

## What reviewers say

### カードで倫理｜アシストシステム

[App page](https://appshunter.io/ios/app/id6738936995)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 完全版 | $2.99 | one-time |


### J.Sugarの音感トレーニング

[App page](https://appshunter.io/ios/app/jsugar/id6777597121)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1000コイン | $0.99 | one-time |
| 2000コイン | $1.99 | one-time |
| 5000コイン | $2.99 | one-time |
| Review Premium | $5.99 | one-time |
| 12000コイン | $5.99 | one-time |


## Frequently asked questions

### Is カードで倫理｜アシストシステム free?

カードで倫理｜アシストシステム is free to download, with in-app purchases available.

### Is J.Sugarの音感トレーニング free?

J.Sugarの音感トレーニング is free to download, with in-app purchases available.

### Do カードで倫理｜アシストシステム or J.Sugarの音感トレーニング have ads?

カードで倫理｜アシストシステム shows ads; J.Sugarの音感トレーニング does not.

### Which is updated more often, カードで倫理｜アシストシステム or J.Sugarの音感トレーニング?

カードで倫理｜アシストシステム ships an update fortnightly, and J.Sugarの音感トレーニング every 9 days. Most recently, カードで倫理｜アシストシステム was updated on November 4, 2026 and J.Sugarの音感トレーニング on October 25, 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.*