# U vs 한게임 OTP

The clearest difference is review sentiment: U at 67% against 한게임 OTP's 33%. U also leads on iOS requirement (8.0 vs 11.0). 한게임 OTP's advantage is update cadence (every 2 months vs every 6 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

U ships an update every 6 months, 한게임 OTP every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | U | 한게임 OTP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/u-otp-plus/id518888140/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | **66.7% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 6 MB | 35 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ATON Inc.](https://appshunter.io/developer/359338184) | [NHN Corp.](https://appshunter.io/developer/708107055) |

## What reviewers say

### U

[App page](https://appshunter.io/ios/app/u-otp-plus/id518888140)

This app generates unique, one-time passwords to enhance your online security. It simplifies the sign-up process by issuing a serial number and allowing you to set a secure PIN for easy access to your accounts.

**Highlights:** Generates one-time passwords, Enhanced online security, Simplified sign-up process, Serial number issuance, PIN protection

**Features:** macOS Compatibility

**In-app purchases:** none


### 한게임 OTP

[App page](https://appshunter.io/ios/app/otp/id1435463951)

Enhance your account security with this app, providing a dual-layer protection service. Log in securely by approving authentication notifications sent to your registered mobile device after entering your ID and password.

**Highlights:** Account protection, Dual-layer security, Secure login, Authentication notifications, Mobile device verification

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is U free?

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

### Is 한게임 OTP free?

한게임 OTP is free to download, with no in-app purchases.

### Do U or 한게임 OTP have ads?

Neither U nor 한게임 OTP shows ads.

### Which is updated more often, U or 한게임 OTP?

U ships an update every 6 months, and 한게임 OTP every 2 months. Most recently, U was updated on November 1, 2026 and 한게임 OTP on November 2, 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.*