# 心房細動アプリ vs QuickZ DX

The clearest difference is update cadence: 心房細動アプリ at every 3 weeks against QuickZ DX's every 3 months. 心房細動アプリ also leads on device support (3 vs 1) and iOS requirement (11.0 vs 15.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

心房細動アプリ ships an update every 3 weeks, QuickZ DX every 3 months. The most recent releases landed on October 8, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | 心房細動アプリ | QuickZ DX |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 24 MB | 13 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 17+ | 12+ |
| Developer | [HealthTech innovation center](https://appshunter.io/developer/1415593337) | [GOOD CYCLE SYSTEM INC.](https://appshunter.io/developer/857522909) |

## What reviewers say

### 心房細動アプリ

[App page](https://appshunter.io/ios/app/id1415593338)

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

**In-app purchases:** none


### QuickZ DX

[App page](https://appshunter.io/ios/app/quickz-dx/id6444023960)

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

**In-app purchases:** none


## Frequently asked questions

### Is 心房細動アプリ free?

心房細動アプリ is free to download, with no in-app purchases.

### Is QuickZ DX free?

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

### Do 心房細動アプリ or QuickZ DX have ads?

Neither 心房細動アプリ nor QuickZ DX shows ads.

### Which is updated more often, 心房細動アプリ or QuickZ DX?

心房細動アプリ ships an update every 3 weeks, and QuickZ DX every 3 months. Most recently, 心房細動アプリ was updated on October 8, 2026 and QuickZ DX on September 16, 2026.

---

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