# PASS by U+ vs 충남상품권 chak

The clearest difference is rating: PASS by U+ at 1.6 against 충남상품권 chak's 1.0. PASS by U+ also leads on update cadence (monthly vs every 2 months) and ratings volume (7 vs 1). 충남상품권 chak's advantage is review sentiment (95% vs 73%). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PASS by U+ holds the better App Store score, 1.6 against 1.0. That said, the two scores are not equally well evidenced: PASS by U+ has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 73% of PASS by U+'s written reviews are positive against 95% of 충남상품권 chak's, so the app with the better star average is not the one people write more warmly about.

PASS by U+ ships an update monthly, 충남상품권 chak every 2 months. The most recent releases landed on September 24, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | PASS by U+ | 충남상품권 chak |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.6 (7 ratings)](https://appshunter.io/ios/app/pass-by-u-plus/id1147394645/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/chak/id1643801490/reviews) |
| Number of ratings | **7** | 1 |
| Positive reviews | 73.0% of reviews | **95.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Size | 343 MB | 45 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [LG Uplus](https://appshunter.io/developer/372558480) | [한국조폐공사](https://appshunter.io/developer/938560543) |

## What reviewers say

### PASS by U+

[App page](https://appshunter.io/ios/app/pass-by-u-plus/id1147394645)

Securely verify your identity and access a range of services including digital identification, financial management, and healthcare information. Manage your mobile driver's license and resident registration card, and utilize a secure digital certificate for various transactions.

**Highlights:** Mobile driver's license and resident registration card, Secure identity verification, Digital certificate for transactions, Financial asset inquiry and recommendations, Mobile payment management, Identity theft prevention service

**Features:** Safari Extension

**In-app purchases:** none

**What reviewers like**

- 👍 Convenient and easy authentication
- 🚀 Fast and efficient process
- 💡 Mobile ID and payment features
- 🔒 Secure and trustworthy
- 👍 User-friendly interface

**What reviewers complain about**

- 🐛 Authentication failures
- 🐛 App crashes or freezes
- 🐛 UI/UX issues
- 🐛 Inconsistent performance
- 🐛 Language barriers for non-Korean speakers

**Reported bugs**

- Authentication does not proceed after password entry
- App becomes unresponsive ('bricks') after OS update
- App crashes upon launch
- Error messages like 'IP.null' or 'PPS 고객입니다. [LRZ0002347]'
- SMS authentication code not received

**Requested features**

- Improve Face ID/Biometric login stability
- Address language translation for English speakers
- Allow registration without a Korean resident number for foreigners
- Fix keyboard not appearing during password setup
- Improve compatibility with specific phone models/OS versions


### 충남상품권 chak

[App page](https://appshunter.io/ios/app/chak/id1643801490)

This app allows users to easily purchase, gift, and use regional gift certificates for various areas within Chungcheongnam-do. It offers convenient mobile charging, payment options like QR codes, and secure authentication methods. Users can also track their transaction history and find participating merchants.

**Highlights:** Purchase and gift regional gift certificates, Mobile charging via bank account, QR code and card payment options, Transaction history tracking, Find participating merchants, Secure biometric authentication

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

**In-app purchases:** none


## Frequently asked questions

### Is PASS by U+ free?

PASS by U+ is free to download, with no in-app purchases.

### Is 충남상품권 chak free?

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

### Which has better reviews, PASS by U+ or 충남상품권 chak?

PASS by U+ is rated higher. PASS by U+ averages 1.6 out of 5 from 7 ratings, while 충남상품권 chak averages 1.0 from 1 ratings.

### Do PASS by U+ or 충남상품권 chak have ads?

Neither PASS by U+ nor 충남상품권 chak shows ads.

### Which is updated more often, PASS by U+ or 충남상품권 chak?

PASS by U+ ships an update monthly, and 충남상품권 chak every 2 months. Most recently, PASS by U+ was updated on September 24, 2026 and 충남상품권 chak on September 18, 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.*