# 心電図ドリル vs なぜ薬

心電図ドリル and なぜ薬 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. 心電図ドリル sells 1 one-off in-app purchase and なぜ薬 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

心電図ドリル ships an update monthly, なぜ薬 every 3 weeks. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 心電図ドリル | なぜ薬 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 5 MB | 4 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [RAINBOW TREE LLC](https://appshunter.io/developer/1619997282) | [Takahiro Ito](https://appshunter.io/developer/6787806782) |

## What reviewers say

### 心電図ドリル

[App page](https://appshunter.io/ios/app/12/id6801799404)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Shindenzu Pro | $9.99 | one-time |


### なぜ薬

[App page](https://appshunter.io/ios/app/id6808386213)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| すべての系統をひらく | $9.99 | one-time |


## Frequently asked questions

### Is 心電図ドリル free?

心電図ドリル is free to download, with in-app purchases available.

### Is なぜ薬 free?

なぜ薬 is free to download, with in-app purchases available.

### Do 心電図ドリル or なぜ薬 have ads?

Neither 心電図ドリル nor なぜ薬 shows ads.

### Which is updated more often, 心電図ドリル or なぜ薬?

心電図ドリル ships an update monthly, and なぜ薬 every 3 weeks. Most recently, 心電図ドリル was updated on October 25, 2026 and なぜ薬 on October 29, 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.*