# FOUR SAFETY vs 京葉銀行 認証アプリ

FOUR SAFETY and 京葉銀行 認証アプリ 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. Neither carries in-app purchases, so what you see is what you pay.

FOUR SAFETY ships an update every 6 months, 京葉銀行 認証アプリ every 4 months. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | FOUR SAFETY | 京葉銀行 認証アプリ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 months** |
| Monetization | — | Free |
| Size | 43 MB | 30 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mitsui Sumitomo Insurance Co., Ltd.](https://appshunter.io/developer/545558892) | [京葉銀行](https://appshunter.io/developer/979863158) |

## What reviewers say

### FOUR SAFETY

[App page](https://appshunter.io/ios/app/four-safety/id1492558338)

**Features:** Vision Pro support

**In-app purchases:** none


### 京葉銀行 認証アプリ

[App page](https://appshunter.io/ios/app/id6469580782)

This free security application enhances the safety of your online banking with Keiyo Bank. It offers transaction authentication to prevent unauthorized transfers and displays one-time passwords for increased security. The app is designed for individual internet banking customers.

**Highlights:** Transaction authentication, One-time password display, Enhanced online banking security, Free to use, Prevents unauthorized transfers

**In-app purchases:** none


## Frequently asked questions

### Is FOUR SAFETY free?

FOUR SAFETY is free to download, with no in-app purchases.

### Is 京葉銀行 認証アプリ free?

京葉銀行 認証アプリ is free to download, with no in-app purchases.

### Do FOUR SAFETY or 京葉銀行 認証アプリ have ads?

Neither FOUR SAFETY nor 京葉銀行 認証アプリ shows ads.

### Which is updated more often, FOUR SAFETY or 京葉銀行 認証アプリ?

FOUR SAFETY ships an update every 6 months, and 京葉銀行 認証アプリ every 4 months. Most recently, FOUR SAFETY was updated on October 25, 2026 and 京葉銀行 認証アプリ on October 27, 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.*