# ISign+ OTP vs 행정반

The clearest difference is review sentiment: 행정반 at 94% against ISign+ OTP's 25%. 행정반 also leads on update cadence (fortnightly vs every 10 months). ISign+ OTP's advantage is in-app purchases (none vs 10) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. 행정반 sells 10 in-app purchases, starting at $0.99 per month. ISign+ OTP asks for nothing beyond the download.

ISign+ OTP ships an update every 10 months, 행정반 fortnightly. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | ISign+ OTP | 행정반 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (46 ratings)](https://appshunter.io/ios/app/id1499123725/reviews)** |
| Number of ratings | — | **46** |
| Positive reviews | 25.0% of reviews | **94.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 170 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Penta Security Inc.](https://appshunter.io/developer/919437580) | [SUKHUI SON](https://appshunter.io/developer/1801009264) |

## What reviewers say

### ISign+ OTP

[App page](https://appshunter.io/ios/app/isign-plus-otp/id919437581)

This security application generates one-time passwords for enhanced user authentication during login. It provides secure, unique passwords for each login, ensuring access from anywhere. Features include offline OTP generation and application locking.

**Highlights:** Generates OTP without data connection, Supports multiple OTP registrations, Includes application lock function, Secure login authentication, Offline password generation

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

**In-app purchases:** none


### 행정반

[App page](https://appshunter.io/ios/app/id1499123725)

This app supports military personnel and their loved ones with essential tools for managing military life. It offers a countdown to discharge, community forums, meal information, and personal schedule management.

**Highlights:** Discharge day calculator, Military community forums, Unit reviews, Military meal information, Vacation and schedule management, Couple sharing features, Salary and savings management

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 광고 제거 1개월 이용권 | $0.99 | per month |
| 프리미엄 1개월 이용권 | $1.99 | per month |
| 한국어 | $1.99 | per month |
| 광고 제거 3개월 이용권 | $2.99 | per 3 months |
| 한국어 | $2.99 | per month |
| 한국어 | $3.99 | per 3 months |
| 프리미엄 3개월 이용권 | $4.49 | per 3 months |
| 한국어 | $5.99 | per 3 months |
| 전광판 1회 이용권 | $0.29 | one-time |
| 행정반 후원 | $3.99 | one-time |


## Frequently asked questions

### Is ISign+ OTP free?

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

### Is 행정반 free?

행정반 is free to download, with in-app purchases available.

### Do ISign+ OTP or 행정반 have ads?

행정반 shows ads; ISign+ OTP does not.

### Which is updated more often, ISign+ OTP or 행정반?

ISign+ OTP ships an update every 10 months, and 행정반 fortnightly. Most recently, ISign+ OTP was updated on October 8, 2026 and 행정반 on October 16, 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.*