# AUTHENTECH byアルク シャドーイングアプリ vs パタプラU30

The clearest difference is update cadence: パタプラU30 at weekly against AUTHENTECH byアルク シャドーイングアプリ's every 3 weeks. AUTHENTECH byアルク シャドーイングアプリ's advantage is iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

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

AUTHENTECH byアルク シャドーイングアプリ ships an update every 3 weeks, パタプラU30 weekly. The most recent releases landed on September 8, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | AUTHENTECH byアルク シャドーイングアプリ | パタプラU30 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 23 MB | 42 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [ALC PRESS, INC.](https://appshunter.io/developer/311444037) | [ABLOGG, LLC](https://appshunter.io/developer/1631477860) |

## What reviewers say

### AUTHENTECH byアルク シャドーイングアプリ

[App page](https://appshunter.io/ios/app/authentech-by/id6755368350)

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

**In-app purchases:** none


### パタプラU30

[App page](https://appshunter.io/ios/app/u30/id6762613100)

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

**In-app purchases:** none


## Frequently asked questions

### Is AUTHENTECH byアルク シャドーイングアプリ free?

AUTHENTECH byアルク シャドーイングアプリ is free to download, with no in-app purchases.

### Is パタプラU30 free?

パタプラU30 is free to download, with no in-app purchases.

### Do AUTHENTECH byアルク シャドーイングアプリ or パタプラU30 have ads?

Neither AUTHENTECH byアルク シャドーイングアプリ nor パタプラU30 shows ads.

### Which is updated more often, AUTHENTECH byアルク シャドーイングアプリ or パタプラU30?

AUTHENTECH byアルク シャドーイングアプリ ships an update every 3 weeks, and パタプラU30 weekly. Most recently, AUTHENTECH byアルク シャドーイングアプリ was updated on September 8, 2026 and パタプラU30 on September 9, 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.*