# SignPLUS vs 코인연

The clearest difference is review sentiment: SignPLUS at 100% against 코인연's 67%. 코인연's advantage is update cadence (weekly vs every 3 weeks). 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.

SignPLUS ships an update every 3 weeks, 코인연 weekly. The most recent releases landed on October 20, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | SignPLUS | 코인연 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 29 MB | 20 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Korea Information Certificate Authority Inc.](https://appshunter.io/developer/434192206) | [JINHOON LEE](https://appshunter.io/developer/6790102771) |

## What reviewers say

### SignPLUS

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

This app provides 2-factor authentication issuance and verification services for iOS devices. Securely manage your authentication needs directly from your smartphone.

**Highlights:** 2-factor authentication issuance, 2-factor authentication verification, 2-factor authentication management, QR code recognition, Face ID authentication, Push notifications for OTP

**In-app purchases:** none


### 코인연

[App page](https://appshunter.io/ios/app/id6790102769)

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

**In-app purchases:** none


## Frequently asked questions

### Is SignPLUS free?

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

### Is 코인연 free?

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

### Do SignPLUS or 코인연 have ads?

Neither SignPLUS nor 코인연 shows ads.

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

SignPLUS ships an update every 3 weeks, and 코인연 weekly. Most recently, SignPLUS was updated on October 20, 2026 and 코인연 on October 21, 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.*