# 디지털OTP vs SignPLUS

The clearest difference is update cadence: SignPLUS at every 3 weeks against 디지털OTP's every 4 months. 디지털OTP's advantage is iOS requirement (9.0 vs 14.0). 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.

디지털OTP ships an update every 4 months, SignPLUS every 3 weeks. The most recent releases landed on September 11, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | 디지털OTP | SignPLUS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.6 (9 ratings)](https://appshunter.io/ios/app/otp/id1129049090/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 1.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 45 MB | 29 MB |
| Requires iOS | **9.0** | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KFTC](https://appshunter.io/developer/370391938) | [Korea Information Certificate Authority Inc.](https://appshunter.io/developer/434192206) |

## What reviewers say

### 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


### SignPLUS

[App page](https://appshunter.io/ios/app/signplus/id6444506543)

**In-app purchases:** none


## Frequently asked questions

### Is 디지털OTP free?

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

### Is SignPLUS free?

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

### Do 디지털OTP or SignPLUS have ads?

Neither 디지털OTP nor SignPLUS shows ads.

### Which is updated more often, 디지털OTP or SignPLUS?

디지털OTP ships an update every 4 months, and SignPLUS every 3 weeks. Most recently, 디지털OTP was updated on September 11, 2026 and SignPLUS on September 7, 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.*