# 모비싸인(MobiSign) vs 디지털OTP

The clearest difference is rating: 디지털OTP at 1.6 against 모비싸인(MobiSign)'s 1.0. 디지털OTP also leads on in-app purchases (none vs 1) and ratings volume (9 vs 2). 모비싸인(MobiSign)'s advantage is review sentiment (14% vs 2%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 모비싸인(MobiSign) sells 1 in-app purchase, starting at $0.99 per month. 디지털OTP asks for nothing beyond the download.

디지털OTP holds the better App Store score, 1.6 against 1.0. Both are backed by a comparable volume of ratings — 2 and 9 respectively. Written reviews complicate that: 14% of 모비싸인(MobiSign)'s written reviews are positive against 2% of 디지털OTP's, so the app with the better star average is not the one people write more warmly about.

모비싸인(MobiSign) ships an update every 5 months, 디지털OTP every 4 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 모비싸인(MobiSign) | 디지털OTP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/mobisign/id510264761/reviews) | **[1.6 (9 ratings)](https://appshunter.io/ios/app/otp/id1129049090/reviews)** |
| Number of ratings | 2 | **9** |
| Positive reviews | **14.3% of reviews** | 1.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 46 MB | 45 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [금융결제원 (KFTC)](https://appshunter.io/developer/666154467) | [KFTC](https://appshunter.io/developer/370391938) |

## What reviewers say

### 모비싸인(MobiSign)

[App page](https://appshunter.io/ios/app/mobisign/id510264761)

This service allows you to electronically sign documents using your smartphone's digital certificate. It securely stores your certificate and enables signing on PCs through various financial and public services. Enjoy enhanced security and portability for your digital transactions.

**Highlights:** Use smartphone digital certificate on PC, Securely store digital certificates, Electronic signing via smartphone, Convenient certificate copying (QR, code), Compatible with banking, shopping, public services

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MobiSign Monthly Subscription | $0.99 | per month |


### 디지털OTP

[App page](https://appshunter.io/ios/app/otp/id1129049090)

This app provides a secure digital one-time password (OTP) service directly on your smartphone. It simplifies financial transactions by replacing physical security cards with your mobile device. Register at a participating bank to start using it for secure banking.

**Highlights:** Digital OTP generation, Secure financial transactions, Replaces physical security cards, Supports multiple banks, Face ID authentication, Push notification alerts

**In-app purchases:** none


## Frequently asked questions

### Is 모비싸인(MobiSign) free?

모비싸인(MobiSign) is free to download, with in-app purchases available.

### Is 디지털OTP free?

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

### Which has better reviews, 모비싸인(MobiSign) or 디지털OTP?

디지털OTP is rated higher. 모비싸인(MobiSign) averages 1.0 out of 5 from 2 ratings, while 디지털OTP averages 1.6 from 9 ratings.

### Do 모비싸인(MobiSign) or 디지털OTP have ads?

Neither 모비싸인(MobiSign) nor 디지털OTP shows ads.

### Which is updated more often, 모비싸인(MobiSign) or 디지털OTP?

모비싸인(MobiSign) ships an update every 5 months, and 디지털OTP every 4 months. Most recently, 모비싸인(MobiSign) was updated on October 23, 2026 and 디지털OTP on October 24, 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.*