# ISign+ OTP vs COMM.IN (컴인) 스탭용

The clearest difference is update cadence: COMM.IN (컴인) 스탭용 at every 4 months against ISign+ OTP's every 10 months. ISign+ OTP's advantage is iOS requirement (8.0 vs 16). 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.

ISign+ OTP ships an update every 10 months, COMM.IN (컴인) 스탭용 every 4 months. The most recent releases landed on October 8, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | ISign+ OTP | COMM.IN (컴인) 스탭용 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 2 MB | 23 MB |
| Requires iOS | **8.0** | 16 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Penta Security Inc.](https://appshunter.io/developer/919437580) | [MK Soft Co., Ltd.](https://appshunter.io/developer/1578990526) |

## 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


### COMM.IN (컴인) 스탭용

[App page](https://appshunter.io/ios/app/commin/id6745119230)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ISign+ OTP free?

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

### Is COMM.IN (컴인) 스탭용 free?

COMM.IN (컴인) 스탭용 is free to download, with no in-app purchases.

### Do ISign+ OTP or COMM.IN (컴인) 스탭용 have ads?

Neither ISign+ OTP nor COMM.IN (컴인) 스탭용 shows ads.

### Which is updated more often, ISign+ OTP or COMM.IN (컴인) 스탭용?

ISign+ OTP ships an update every 10 months, and COMM.IN (컴인) 스탭용 every 4 months. Most recently, ISign+ OTP was updated on October 8, 2026 and COMM.IN (컴인) 스탭용 on October 1, 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.*