# 永久階段 vs Zen Power Exam

永久階段 and Zen Power Exam are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 永久階段 | Zen Power Exam |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | — | Every 8 days |
| Size | 108 MB | 40 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Garhi Japan K.K.](https://appshunter.io/developer/1444709284) | [Katsuya Kawase](https://appshunter.io/developer/1749728640) |

## What reviewers say

### 永久階段

[App page](https://appshunter.io/ios/app/id6499254170)

**In-app purchases:** none


### Zen Power Exam

[App page](https://appshunter.io/ios/app/zen-power-exam/id6504720230)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 永久階段 free?

永久階段 is free to download, with no in-app purchases.

### Is Zen Power Exam free?

Zen Power Exam is free to download, with no in-app purchases.

### Do 永久階段 or Zen Power Exam have ads?

Both 永久階段 and Zen Power Exam show ads.

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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.*