# 보안카드 Z vs 디지털OTP

The clearest difference is review sentiment: 보안카드 Z at 92% against 디지털OTP's 2%. 보안카드 Z also leads on rating (3.8 vs 1.6) and update cadence (every 2 months vs every 4 months). 디지털OTP's advantage is price (Free vs $0.99) and iOS requirement (9.0 vs 17.0). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

디지털OTP is free to download; 보안카드 Z costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

보안카드 Z holds the better App Store score, 3.8 against 1.6. Both are backed by a comparable volume of ratings — 4 and 9 respectively. Written reviews point the same way: 92% of 보안카드 Z's written reviews are positive against 2% of 디지털OTP's.

보안카드 Z ships an update every 2 months, 디지털OTP every 4 months. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 보안카드 Z | 디지털OTP |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.8 (4 ratings)](https://appshunter.io/ios/app/z/id998612420/reviews)** | [1.6 (9 ratings)](https://appshunter.io/ios/app/otp/id1129049090/reviews) |
| Number of ratings | 4 | **9** |
| Positive reviews | **91.7% of reviews** | 1.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | Free |
| Size | 9 MB | 45 MB |
| Requires iOS | 17.0 | **9.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [jang junhyuk](https://appshunter.io/developer/998612419) | [KFTC](https://appshunter.io/developer/370391938) |

## What reviewers say

### 보안카드 Z

[App page](https://appshunter.io/ios/app/z/id998612420)

Securely manage important financial and membership card information with a focus on privacy and security. Supports biometric authentication and iCloud backup for seamless data management across devices. Encrypts all card details for safe storage.

**Highlights:** Biometric authentication (Face ID/Touch ID), Manage security, credit, and membership cards, iCloud backup and restore, Encrypted data storage, No app usage tracking, Ad-free experience

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 보안카드 Z free?

보안카드 Z costs $0.99, with no in-app purchases.

### Is 디지털OTP free?

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

### Which has better reviews, 보안카드 Z or 디지털OTP?

보안카드 Z is rated higher. 보안카드 Z averages 3.8 out of 5 from 4 ratings, while 디지털OTP averages 1.6 from 9 ratings.

### Do 보안카드 Z or 디지털OTP have ads?

Neither 보안카드 Z nor 디지털OTP shows ads.

### Which is updated more often, 보안카드 Z or 디지털OTP?

보안카드 Z ships an update every 2 months, and 디지털OTP every 4 months. Most recently, 보안카드 Z was updated on October 18, 2026 and 디지털OTP on October 15, 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.*